In crisis conditions, many people are put in a rather tough position, from ordinary citizens to representatives of big business. The automobile market turned out to be the most susceptible to various problems, and difficulties began to appear on it at the end of 2014, because it was from that time that experts noted an increase in the service life of various cars. Every person today tries to delay as much as possible the moment when his old, proven car needs to be replaced with a new car, using a wide variety of means, one of which is “Lavr” decarbonization. Reviews about this product can be found mostly positive, but in order to finally decide on a purchase, you need to understand the principle of action and the benefits of this product.

Today, a car service is a place where drivers prefer not so much to fix various malfunctions, but rather to prevent problems related to the age and mileage of the car. An intermediate means of such prevention is specialized auto chemical products.

How did she appear?

Immediately after various cars began to actively spread in the USSR, every owner knew that it was necessary to periodically clean the piston rings from various contaminants. At the same time, fuel in those days burned much worse compared to today, and sludge formed on the surface of parts quite quickly. Today, everyone can do decoking with “Lavr” to get rid of such faults, but back then they had to come up with something else.

The oil was also of much lower quality, so it oxidized quite quickly on the cylinder walls, forming a film and getting into the piston grooves. Among other things, during the combustion of fuel, soot gradually formed, mixing with this film, thus forming extremely persistent solid deposits that block the operation of the pistons.

Motorists tried to combat such pollution by any available means, for example, leaving kerosene in the engine overnight, and over time they began to use special solvents more often. Desperate car owners did not stop at the risk of being left without any means of transportation. In addition, the effectiveness of such compositions was practically absent, and even today many car enthusiasts are not afraid to experiment to their own detriment. Some have completely forgotten that such a procedure needs to be carried out, relying entirely on additives that are added to modern oils, as well as relatively high fuel standards.

Since those times, automotive chemistry has advanced significantly, and today many people use Laurel decarbonizing liquid for these purposes, but it is also not omnipotent, as many may think.

How does LAVR help delay major repairs?

It is quite natural that for most car enthusiasts this is the most terrible event, since this is a colossal expense, and the need to carry out such a procedure indicates that the car is currently completely unsuitable for use. That is why, in order to avoid such situations, a special decarbonization “Lavrom” is used. Reviews say that the savings with the help of such a product are quite noticeable, because today the cost of overhauling most middle and budget class cars fluctuates around 50,000 rubles, while the drug costs only 400. But this remedy is not a panacea that gets rid of the need for repairs, but only prevention, so it will be useful to understand whether serious savings are actually being achieved.

New trend of car services

It is worth noting the fact that today even many car services have gradually begun to include in their price list such a service as Lavr decarbonization. Feedback from experts on this matter suggests that this is quite a profitable activity, since not all car enthusiasts can carry out this procedure on their own, despite the fact that they have this opportunity. For professionals, this is not a labor-intensive procedure, and it can easily be carried out on the street, since it does not involve the need to place the car in a service center. Thus, many companies ensure genuine gratitude from customers and a more active flow of them, and, consequently, profit. All this is ensured by Lavr decarbonization. Reviews from experts indicate that the flow of cars for this procedure is almost continuous. The reason is that it needs to be carried out every year or every 30,000 km, which means that a person who has already carried it out is guaranteed to become a regular customer of this service.

What are the advantages?

“Lavr” liquid for engine decarbonization is absolutely safe for various equipment, so its use completely eliminates the possibility of any conflict situations or complaints from customers.

The procedure is extremely easy to use, so the owner of such a business does not have to allocate additional funds to train specialists - just read the instructions for the drug and follow it correctly. If the Laurel liquid is dosed correctly, the consumption of the drug in a car service can even be recorded.

It is worth noting that this procedure was carried out by Soviet car enthusiasts, but LAVR is the first company to release the drug to the mass market, and at the moment there are no products that would surpass ML 202 in their technical characteristics. A separate advantage of this product is that that the car service does not need to allocate additional costs for equipment, since all the tools necessary for the procedure are included in the packaging of the drug itself, which is another significant advantage.

Despite the fact that it has been possible to do decoking with “Lavr” for quite a long time, car enthusiasts have formed many different prejudices and stereotypes regarding this procedure, many of which are not true. That is why next we will try to analyze a few main points.

Modern engines do not require decoking

Of course, over the past few years the situation with oil and fuel has improved significantly, because in Soviet times, few could even start without use, but despite this, the problem of coking not only did not disappear, but also seriously worsened. Technologies have become more advanced, the gaps between the grooves and piston rings have decreased, but this ultimately led to greater vulnerability of modern systems. Also, a small layer of deposits ultimately leads to engine malfunctions; over time, deposits accumulate more and more, and the problems only become more serious - compression drops, detonation occurs, wear accelerates, and then serious breakdowns appear. If you are not going to spend money on major repairs, then proper decarbonization with “Lavr” can help.

Versatility of the product

Of course, “Lavr” is a fairly effective remedy, but in fact it is far from universal and primarily performs a repair and preventive function. If the engine is too worn out, then no procedure short of a complete overhaul and replacement of parts will be able to return the system to working condition.

Additives and flushing liquids

Many believe that these procedures save you from any problems, so decarbonization is not at all necessary. In fact, the most effective way to remove various deposits is through “immersion,” when the decarbonizing composition is poured directly into the cylinders. At the same time, getting to the technological holes is not so easy, and you have to use special tools, as well as create comfortable conditions for yourself (it is better not to carry out such work outside in bad weather). That is why it is recommended to decoke the engine during a scheduled replacement of spark plugs or oil.

The amount of liquid affects cleaning

The volume of liquid must be sufficient to thoroughly wet the car pistons. In the vast majority of cases, the volume of preparations is calculated so that it is enough to process each cylinder. Of course, if you pour 50-60 ml more than the standard dosage, this will not affect the engine’s performance in any way, but pouring the product in huge quantities is still not recommended.

The liquid must perfectly clean the surface

“Lavr” is a preparation that cleans medium and high degrees of coking, but it often happens that in old engines the deposits have already become so “bored” to the parts that they hold on to them like cement mortar, and even cleaning such systems is white Not recommended. It is also worth noting the fact that solutions that are too caustic can cause engine damage.

But in any case, LAVR is considered a more effective product compared to analogues and standard solvents.

How is this procedure carried out?

Now let's talk about how Laurel liquid is used. Decarbonization (instructions below) does not take much time if you follow the instructions for this product correctly and choose the right dosage. The procedure itself is done as follows:

• The engine warms up to operating temperature, which should be more than 70 ⁰C.
• The ignition system is turned off. To do this, you can remove the connector from or. Thanks to this, you can get rid of possible ignition of the vapors of this drug, as well as damage to various elements of the system.
• The spark plugs are removed. If the procedure is carried out in a diesel engine, the injectors are also removed.
• The pistons are set to a position close to the middle one, while the crankshaft must be rotated by the pulley nut or using the drive wheel when the gears are engaged. To determine the position of the piston, you can use a long feeler gauge inserted through the process hole.
• Using a syringe, pour an equal volume of Laurel decarbonizing liquid into each cylinder. After this, close the technological holes so that a “steam bath” is formed in the combustion chamber.
• Now we have to wait. For an express procedure, you need to wait at least one hour, but in case of serious coking, the exposure time of the drug should increase up to 12 hours. In order for the liquid to more efficiently seep into the lower part of the cylinders, the pistons can be periodically moved in different directions.
• Clear technological holes. The remaining liquid is removed with a syringe, after which the cylinders are purged with compressed air. Now you will need to fully depress the accelerator pedal, and then turn the engine shaft using the starter two or three times for five seconds. In this case, it is recommended to cover the technological holes with some thick cloth so that the decarbonizing agent for Laurel rings does not splash out.
• Install dismantled parts and assemblies. Be sure to additionally check for correct assembly.
• Start the engine and let it idle for 5-10 minutes to reach operating temperature. It’s worth noting right away that short-term smoke may appear, since the liquid for decarbonizing the “Lavr” rings remaining inside will burn out, and this smoke is not dangerous for the catalysts.
• Clean the engine with a product designed for flushing the lubrication system, or with a special product LAVR.
• To completely get rid of carbon deposits, it is recommended to drive the first few kilometers at slightly higher speeds.

This type of decarbonization is offered by the Lavr company. The instructions are extremely simple, and the work can be carried out by experienced motorists in a garage, so if you are confident in your abilities, you do not necessarily need to turn to the services of car services.

What do they say in the reviews?

Most people quite liked the product of the Lavr company - a decarbonizing agent, and they note the positive effect of its use. Among the advantages of using this liquid are the following:

• Significant reduction in oil consumption during active pedaling (about 10-20%).
• After the Lavr diesel engine was decarbonized, many people's engines began to run quieter. In gasoline units the same effect occurs, and vibrations also disappear.
• The equipment has become more obedient at high speeds and accelerations, and also has a more pleasant sound.

Some people who used the Lavra composition for decoking say that they did not see any noticeable effect, and such products do not particularly help with problems that arise, and the rings are easier to replace than to carry out the indicated manipulations.

The life of a car cannot be compared with a human one. Simple arithmetic: at idle, a diesel engine makes a minimum of 600 revolutions per minute - that is, 10 per second. In this case, the piston “walks” 20 times. We press on the gas - the number of revolutions exceeds a thousand. Add here the constant exposure to high temperatures and cold when starting in winter... A person could never even dream of such an extreme! Therefore, forgetting about such a procedure as engine decarbonization using LAVR ML202 - ML203 NOVATOR preparations is a real crime.

Background

When cars first appeared in the USSR, everyone knew that it was necessary to periodically clean the piston rings of dirt. Fuel in those days burned much worse than now. Varnishes and sludge quickly formed on the surface of the parts.

The oil was also so-so and even worse. What happened to him in the engine? It oxidized on the cylinder walls, turning into a film, and got into the piston grooves. Also, during the combustion of the fuel, soot was formed, which was mixed with the oil film. Over time, all this turned into a single monolith - persistent solid deposits that blocked the operation of the piston rings.

Soviet motorists fought against pollution with all the methods available at that time: they filled the engine with kerosene at night, and later they began to add solvents. Desperate car enthusiasts were not deterred by the risk of being left without a car at all and the almost zero effectiveness of such compounds. However, even now the owners of “iron horses” do not hesitate to experiment to their detriment. And some people completely forgot about decoking the engine - they relaxed, relying on additives in modern oils and relatively high fuel standards.

Since those times, modern auto chemicals represented by our products ML202 - ML203 NOVATOR have stepped far forward. However, she is still not omnipotent, as some people think. Therefore, we decided to debunk the most popular myths about engine decarbonization.

Myth 1. Modern engines do not need decoking

Nothing like this! Of course, in 10-15 years the situation with fuel and oil has changed for the better. In Soviet times, it was impossible to start without a blowtorch in the winter (let’s keep silent about how dangerous it was to heat up the lubrication system pan in this way: the slightest leak, and the Zhiguli was left with burnt legs and horns), but now an easy cold start is something by itself of course.

Despite this, the problem of coking has not gone away and has even worsened. Thanks to progress: technology is more advanced, the gaps between the piston rings and grooves are smaller, the system is more vulnerable. Even a thin layer of deposits will cause the engine to malfunction. Over time, there are more deposits, the problems become more serious - a drop in compression, glow ignition, detonation, accelerated wear, and then a serious breakdown. If you don’t want to shell out money for major repairs, don’t forget about decarbonization.

Myth 2. Engine decarbonization is a universal cure for all ills

There is no doubt, LAVR drugs are almost legendary. But they are far from the “living water” of folk tales. Engine decoking is primarily a repair and preventative operation. Like an examination by a hygienist, if we draw parallels with medicine. If there are problems with cleanliness in the cylinders, the ML202 and 203 will eliminate them. But if the engine is badly worn, no procedure other than overhauling and replacing parts will help the system.

Myth 3. The debonding procedure is the same for all engines.

The principle is the same for all motors. However, engines are different - in-line, opposed, V-shaped... Each has its own nuances. If you are in any doubt, check with our experts by phone or email. But there is one general rule: if the engine has inclined cylinders, it is better to fill them with more liquid. In detail about decoking of boxer and V-shaped engines,

Myth 4. I constantly use gasoline additives and wash the injectors with a liquid with a decoking effect. There’s no need to do any more decoking

The most effective way to remove deposits is by the “immersion method” - that is, by pouring the decarbonizing composition directly into the cylinders. So one does not interfere with the other. But at the same time, nuances arise: getting to the technological holes is not always easy - you need special tools and comfortable conditions. It is better not to carry out this procedure outdoors, in the rain or snow. That is why we advise combining engine decoking with a scheduled oil or spark plug change.

Myth 5. The more decoking liquid, the better the cylinders are cleaned.

There should be enough liquid so that the pistons are well moistened with it. The volume of preparations is designed in such a way that the decoking liquid is sufficient to treat all cylinders. 50-60 ml in excess of the required amount will not harm the engine, but it is also not worth pouring the drug into buckets.

Myth 6. The decarbonizing liquid must clean white.

Our products are for those who have an average or higher degree of cylinder coking. It often happens that in old engines deposits “hold” parts, like cement mortar holds bricks together. Therefore, it is not recommended to whitewash such systems. In addition, solutions that are too caustic can damage engine parts. However, our compositions are much stronger than many analogues and traditional solvents.

Myth 7. After decoking, the car always smokes a lot

The car will smoke in any case, but not always much. The piston has technological recesses in which liquid is retained. In addition, the deposits become saturated with drug vapors and swell, preventing the liquid from leaking further. This excess drug begins to burn when the engine is started after the procedure, turning into white smoke from the exhaust pipe.

To reduce smoke, we recommend removing any liquid remaining in the cylinders. This can be done using a tube with a syringe that comes with the drug. If necessary, it can be extended with any plastic tube. Also, if the fluid is not pumped out, starting may be difficult, and thick white smoke will take longer. There is no need to worry about the catalyst - the drug burns out gradually and does not harm it.

Myth 8. After decoking, you can drive to a car service center and change the oil there.

In principle, it is possible. But a clear answer to this question depends on how much oil you have in the system, what quality it is, how long it takes to get to the service station, at what speed, what the load on the car will be, etc., etc. Therefore, we recommend changing the oil without leaving the cash register - that is, immediately after decarbonization, and not embarking on risky voyages.

Myth 9. After decoking it will only get worse because compression in the cylinders will drop.

As a rule, old engines are literally overgrown with deposits. Because of this, the pistons and rings wear out a lot. If you carry out decoking on such a car, you will find out that over the years of operation the parts have worn out considerably. Therefore, compression drops and starting becomes difficult. If treating the engine with ML202 - ML203 NOVATOR did not give good results, then it’s time for the engine to be rebuilt.

Myth 10. After the procedure, the engine will not start

During engine decoking, the cylinders are wetted with liquid. If they are not properly dried, the engine may not start the first time, but only after several attempts. Therefore, after the procedure, it is recommended to wipe the candles dry and remove excess drug from the cylinders.

And sometimes the matter is not at all in the decarbonization procedure. It happens that the procedure was carried out using our drug according to all the rules. But the car never starts. It turns out that the high-voltage coils on the car are reversed. If you return them to their places, the engine will start with half a turn!

That is why we insist that you must follow the instructions strictly. And the phrase that a motorist who decides to carry out the decarbonization procedure must have basic skills in engine maintenance also appears on the box for a reason. So be careful, follow the recommendations of specialists, and then your engine will delight you with quiet and flawless operation!

Engine decarbonization And piston rings- a procedure aimed at removing carbon deposits from piston group parts. Namely, cleaning combustion products of low-quality fuel and oil from pistons, rings and valves. both with your own hands and at a service station, it is carried out using special means - chemical compounds, solvents and solvents. You can remove coke in 4 ways, three of which are carried out without opening the engine, and are purely a preventive measure. You can get rid of carbon deposits not only with a specially designed liquid, but also with products you prepare yourself. Moreover, both of them will have good efficiency. The quality of decarbonization depends on the procedure, accuracy of execution and expediency in a particular situation.

Any decarbonization is good as prevention! How is oral hygiene in humans? It is best to do it periodically, without bringing the engine’s condition to a critical point, when only a bulkhead can “reanimate” it. Very relevant for German engines (VAG and BMW) prone to oil consumption.

To cope with this task, you will have to study the list of popular means that allow you to do decarbonization, their characteristics, properties, reviews of actual use, as well as the instructions for which the procedure is carried out.

Why is decoking necessary?

The first logical question that novice car owners have is why bother decarbonizing the engine? Secondly, how can you actually clean the CPG and CVS? Coking of the rings reduces their mobility, deposits on the piston reduce the volume of the combustion chamber, and carbon deposits on the valves do not allow them to work properly, which entails oil consumption, scuffing on the cylinder walls, a decrease in engine power, valve burnout, and as a result -. Therefore, the main task of decoking is to remove carbon deposits on top of the piston, loosen the rings and clean the oil drainage channels.

Such a regular procedure will eliminate malfunctions resulting from the appearance of deposits. In particular, detonation will disappear and the slight variation in compression across the cylinders will level out. But in order to get rid of the typical gray gas, you will also have to eliminate the reason for the entry of fuel and lubricants into the combustion chamber.

One of the chemicals belonging to the so-called “soft” or “hard” groups of decoctions will help to cope with sediment products. It is worth noting that each of them has both its pros and cons.

10 best decarbonizers

Taking into account only the results of actual use and cost, and not advertising campaigns, we will compile a list of 10 products from different price categories, application options and methods of combating carbon deposits. Note that all of them are suitable for decarbonizing gasoline and diesel engines, since there is no fundamental difference. There may only be a layer of soot, more or less.

So, which decarbonizer is better to choose from all those on the market? Tests that showed good results and a number of positive reviews made it possible to arrange popular products in the following order:

* We did not include solvents that are added as an additive to fuel for cleaning injectors (the exception is Edial, because this is really decarbonization), since their effect on carbon deposits is minimal, the effect is mainly aimed at cleaning injectors, and not parts of the piston group. There is also 204-SURM-NM, it is poured into the fuel and into the cylinders, but there is very little data about it to make objective conclusions.

** We would also like to separately note that in the rating we did not include those decarbonizers that are added as an oil additive (BG-109, LIQUI MOLY Ol-Schlamm-Spulung or Ormex), since their action is effective only in combination, and they can be used to wash off tanned pistons to no avail.

Hydroperite with water, which some experimenters try to use to remove carbon deposits from pistons, is not recommended. Not only will it not fully cope with this task, but there is also a lot of hassle (you need to connect a dropper to the intake manifold). Hydrogen peroxide can be used as a handy tool for cleaning the throttle body. This is the situation with professional solvents, you need skills, otherwise you can get a water hammer.

Cleaning the piston from carbon deposits

So, as you can see, not all advertised decarbonizing products are universal and worth attention. Only the first three products that are poured into the cylinders will help deal with coked rings and improve the situation with oil consumption. Others will not give such a joyful effect, especially when the situation is neglected. And if we talk about household means, then it is better to use them exclusively directly for cleaning pistons, valves or the engine block during major overhauls, but not for decoking the engine, when oil consumption and a decrease in compression occur. Because they very aggressive and can corrode paint, aluminum pistons or the engine block.

In order to understand why, and learn about each product in more detail, read the characteristics, application features and reviews of car owners who have once tested this or that liquid designed to remove carbon deposits from oil.

Characteristics, features and reviews - rating of the best decarbonizers

Best results when soaking valves and pistons. Where carbon deposits have not been removed, it will become soft and can be easily removed mechanically.

Mitsubishi Shumma Engine Conditioner is a Japanese engine decarbonizer No. 1 in the opinion of the majority of both professional auto repairmen and experienced drivers. Decoking Noise from Mitsubishi is a petroleum-based solvent, 20% of ethylene glucol and mono-ethyl ether, smells of ammonia, and is a representative of hard decoking. This active foam cleaner was developed for cleaning GDI (direct injection) engines, but actually removes carbon deposits from any engine. It is introduced into the cylinders through a tube. It is kept for 30 minutes, but according to the recommendation it is most effective when kept for 3 to 5 hours. It is not aggressive towards valve stem seals.

One cylinder is only enough to decouple a 1.5 liter engine. The decarbonizing agent copes with carbon deposits on pistons, rings, valves and combustion chambers. It can be used not only without disassembling the engine, it can also be used to soak piston group parts in it to remove sludge. The price for Shumma is more than huge, on average about 1,500 rubles for a standard 220 ml. balloon. In many regions of Russia it can be quite difficult to buy. But such excitement is completely justified. And if its use does not produce results, then we can say with confidence that only repairs can help. Order code - MZ100139EX.

Reviews

• There was an impressive oil consumption, but after 2 hours of keeping the product in the piston, the situation improved significantly. By the way, they write that there is no need to change the oil, I advise you to change it anyway, since more than half of the liquid went into the crankcase as a result of decarbonization
• I learned about Schumm's decarbonization from a video where tests were carried out on the example of removing carbon deposits from a valve. I decided to test it on my car and the rings stuck. And at the same time I decided to clean the EGR. The product coped with the task with a bang, probably it wasn’t that bad.
• On my Mistubisi Lancer I had to add oil once a week. Based on the recommendation, I decided to use the original engine cleaner. After cleaning, I tried to start the engine for about five minutes. There was a lot of smoke and sludge. As a result, the car drove a little more vigorously, and in 500 km only 2 mm was lost on the dipstick.
• There was a large detonation, knowledgeable people assumed that the valves were carbonated. I bought Shuma, removed the intake and pumped it into the intake valves, and into the cylinders. After 30 minutes, upon examination, I saw that they had indeed become clean. After the procedure, the engine stopped shaking and the revs went away. I would like to warn you that a couple of drops got on the headlight and now there are marks on the body, I think only polishing will do the job.

• Pros:
• Fast and high-quality decarbonization of both rings and valves;
• You can clean carbon deposits on pistons, throttle valves and EGR;
• It can be used without opening the motor, or you can also soak disassembled parts.

• Minuses:
• Very expensive;
• Although it doesn’t eat the paint in the pan, if it gets on a plastic headlight or body, it leaves a cloudy mark.

The cleaning effect is almost the same as everyone’s favorite Shuma, only 3 times cheaper. So we can say that this is the best folk remedy for decoking engines.

GZox Injection & carb cleaner is a chemical product developed by the Japanese company Soft99. Already from the name it is clear that it is intended for cleaning injectors and carburetors, but it has also proven itself well when decoking the engine. The instructions do not contain information on how to remove carbon deposits on the pistons, but don’t let this scare you; use them like other cleaning fluids poured into the combustion chamber.

The composition includes petroleum solvent and ethyl glycol. It creates an oily film on the surface, so despite the fact that it is similar to the products from the hard decarbonization section, the effect is much softer. It is recommended to use it as a preventive measure every 10 thousand km.

A 300 ml bottle is enough for most cars with a 1.5 - 1.8 liter engine, and is also enough for a V-shaped 6-cylinder engine. According to the test results, it was shown that Gzoks perfectly cleans the piston of carbon deposits and is able to stir up the rings. But I still couldn’t open the piston holes cemented with coke. Although the composition is almost similar to the leading one, it is still slightly inferior in terms of effectiveness. More affordable than Shumma. The average cost is between 500-700 rubles. The code for ordering Gzoksa is 1110103110.

Reviews

• We managed to achieve a result in reducing oil consumption from 1 liter per thousand to a reasonable 100-200 ml. But since decarbonization with Gzoks is not the direct purpose of the product, the main thing is to follow the sequence: apply to each cylinder for 5 seconds; for the first hour, move the shaft every 15 minutes; after 1 hour, add more leftovers; soak the composition for 4-5 hours.
• It was difficult to find in the public domain, but it was worth the effort. The piston was cleaned almost perfectly. Oil consumption has decreased by 4 times. After 15 thousand km I want to repeat it again.
• There is experience using Gzoks decarbonizer on several types of engines (VAG included) = the result is positive in all cases of use (compression equalization, reduction of oil consumption, improvement of traction and consumption parameters).
• Excellent removal of carbon deposits, resins and other contaminants. But keep in mind that GZox contains ammonia, which “eats” Aluminum. Cast iron/steel - does not corrode.

• Pros:
• Used for cleaning carburetor, throttle valve, injectors and decarbonizes rings;
• Soft influence on the piston;
• Enough to decarbonize a six-cylinder engine.

• Minuses:
• Does not decarbonize oil channels;
• Due to the popularity and level of effect, the price in some stores is sometimes exorbitant.

The best remedy available. An analogue of Gzoksu, it costs less, but it also loses slightly in performance.

Kangaroo ICC300 EFI and carburetor cleaner made in Korea. Like the previous sample, GZox is not a product specifically for decarbonization, but nevertheless copes with this task perfectly. But it will not be possible to open the oil channels with this liquid. An excellent option to eliminate coking after a long period of parking the car when the rings are stuck.

There are opinions that Kangaru has a similar composition to top-end products because it also smells of ammonia, but this is not so. ICC300 cleaner is water-based and has good emulsification (solubility with oil), it contains: lauryl demethylamine oxide, 2-butoxyethanol, 3-methyl-3-methoxybutanol. It is poured exclusively when heated to 70℃, for the result it takes about 12 hours.

Low evaporation and softens sludge well. As a result of penetration into the oil and short-term engine operation after decoking, it has a beneficial effect on flushing the oil system. In combating deposits of fossilized varnish on pistons, it is slightly worse than Gzoks, but the price is lower, on average it can be bought for 400 rubles. Order number: 300 ml. cylinder - 355043.

Reviews

• I bought a Kangaroo ICC 300 and decided to immediately test it in action. I did a little test - I sprayed it on the carbon deposits on the oil filler neck. Foam formed and everything began to flow. Now it shines like new, I’m very surprised that the action is so fast.
• I sprayed kangaroo icc300 directly into the removed intake. To clean the injectors and valves. I let the liquid sour for about 10 minutes, then I began to slowly turn the HF so that the kangaroo penetrated into the combustion chamber and waited another 20 minutes. From the marks on the fabric I saw that a lot of coke had been washed away, but I did not see any changes in the operation of the engine.
• A slight detonation appeared, after spraying Kangaroo cleaner everything stabilized.
• Over 200 km after decoking with Kangaroo ICC300, the engine began to run noticeably quieter, accelerate a little more quickly, and somehow runs easier. But with oil consumption, the situation worsened after 2000 km.

• Pros:
• Cheaper than other good decoking agents;
• One can can clean the throttle valve and carbon deposits on the pistons;
• It cleans the oil system well with the amount that seeps under the rings.

• Minuses:
• weak effect at room temperature.

Decarbonization VeryLube(XADO) anti-coke refers to a chemical method for removing burnt oil deposits. This aerosol is designed to quickly clean cylinders, pistons and combustion chambers of all types of contaminants (carbon deposits, coke, varnishes, resins), as well as restore mobility to the rings of gasoline and diesel engines. But in fact, it barely copes with cleaning the pistons, not to mention the oil passages. Khadovsky anti-coke is much worse than the previous ones, but if used on a slightly coked engine, it is quite worthy of attention. In at least 7 out of 10 cases when there is a slight discrepancy in compression readings among the cylinders, it helps. The first start after decarbonization will be very difficult.

An interesting feature of VERYLUBE Anti-Coke is that it can be used to flush the engine oil system. Therefore, the manufacturer assures that after use it does not require changing the engine oil. The consequences after such a procedure have not been studied. So, given the dilution of the oil, it is still better to change it, as in other cases of using the hard method.

Contains detergent-dispersant components, aliphatic hydrocarbons. Although safe for rubber products, the manufacturer still recommends avoiding contact with paintwork.

One can of 250 ml. Enough for cleaning a 4-cylinder engine, the article number of such a product is XB30033, the average price in Moscow is 300 rubles. As real tests have shown, this new product performs poorly. But there are also other packages on sale, with a better effect, which, by the way, are positioned not as decoking of the engine, but of piston rings. Anti-coke liquid 320 ml. based on 20 cylinders, but in reality a maximum of 8-10. Order code - XB40011 for 600 rubles. and blister 10 ml. (dosage per cylinder) - XB40151 costing 130 rubles.

Reviews

• The engine “ate” a lot of oil, which indicates that the rings were clearly stuck. BUT using the decarbonizer Veri Lub from Xado did not give a positive effect.
• I decarbonized the piston rings using Verylube Anticox spray according to the instructions. As a result, at the first start there was smoke all over the yard, with strange flakes from the exhaust at high speeds. The engine began to operate more stable (small dips and choking disappeared).
• I did decoking for prevention. Engine 3.5L V6, oil consumption was 300-500g per 5000km. I knew about foam products like Shuma or Gzoks, but they are more expensive and not so easy to buy, so I used VeryLube Anticox, a product that, although not the most effective, works and is cheap. The decarbonization procedure must be repeated several times. I did it 2 times, poured the product for 30 minutes, 1 bottle was enough. I'm happy with the result, the compression has almost leveled out.

• Pros:
• There is a choice according to the required volume;
• Used to clean pistons when opening the engine;
• You can immediately flush the engine oil system.

• Minuses:
• Poorly effective in case of severe coking;
• The procedure must be repeated several times in a row.

Professional quickly but not safely removes carbon deposits, washes the piston, restores the mobility of the rings and is able to soften deposits in the oil outlet channels. This Russian product for removing carbon deposits and varnish deposits does not meet international environmental safety standards.

Decarbonization Grinol is effective but aggressive. The chemistry contains powerful solvents, namely: selective organic, purified petroleum distillates, functional additives. Owners of cars with a painted tray inside should refrain from using it. It also has a detrimental effect on valve stem seals (the rubber bands simply swell by 2 times, but fortunately they can recover overnight).

Greenol will be enough to flush most engines, including V6, since its bottle volume is 450 ml, which is much larger than most decarbonizers on the market. It copes with average coking with a minus 5. To achieve the maximum effect, not only do you need to decoke on a warm engine, you also need to pour in 50-80 ml at a time (or as much as will go in), and top up during the process of evaporation and seepage.

Reviews

• Before flushing, the engine was running and one spark plug was filled with oil. I spent an hour and a half on the procedure. Now it works smoothly.
• For a week there was a burning smell in the cabin from chemicals. Apparently it burned out, but that's a minor thing.
• The car stopped smoking. I stopped eating much less. The compression has increased and leveled out, it works more smoothly so far I have not found any disadvantages. I'm thinking about decoking again.
• After running the first 1 thousand km of using Grinol decarbonizer, the oil level is still at the maximum. And before that, the consumption was 300 grams.
• The bitter experience of peeling paint and clogging of its oil receiver mesh was very powerful: (You need to handle it carefully!

• Pros:
• The large volume is enough to decarbonize a 3.5 liter engine;
• Good when using individual parts (valves, cylinders).

• Minuses:
• Corrodes paint;
• Aggressive to rubber parts.

The most popular domestic liquid for removing carbon deposits from pistons, their grooves and rings without disassembling the engine. But as real results show, its effect at the level of acetone and kerosene is very mediocre. Although it creates a much more aggressive environment.

The product Lavr ML202 Anti Coks Fast is a hard decoking method. It is a complex of surfactants and targeted solvents of different chemical natures. Designed to act on tar-coke and carbon deposits. During repeated tests, practice has shown that after Lavra, soot still remains. And the only way to completely clean the piston is mechanically. So, unfortunately, it does not have all the properties declared by the manufacturer.

Decarbonization with LAUREL necessarily requires an oil change, so it is recommended to use it before scheduled maintenance. The attached instructions Lavr provides for pouring 45 ml into the cylinders. and literally for 30-60 minutes, but such a short period is maintained exclusively for express cleaning with regular use. But when the case is advanced, significant symptoms of misalignment of the pistons and rings appear, then at least 12 hours are needed. The maximum stay of the liquid in the cylinder is no more than 24 hours. Indiscriminately removes carbon deposits in the chamber and on the working surfaces of the pistons. Although this is not the main task of the application. The most important thing is to decarbonize the oil scraper rings. The amount of liquid is calculated to decarbonize an engine with a volume slightly higher than 2.0 liters. Order number for 185 ml - LN2502.

Reviews

• After receiving advice on the effectiveness of decoking Lavr ML-202 on the forum, I decided to test it myself in a Skoda with a TSI engine. The oil level was almost a liter per thousand. The engine began to run quieter, but the decrease in oil consumption was short-lived.
• The car ran for 150 thousand. I poured it into the cylinders and left all this liquid for 10 hours, as a result there was almost no effect. The residues pumped out with a syringe turned slightly brown, and there was also little sludge on the rag placed when scrolling. The car really didn’t want to start and the compression only dropped from 15 to 14 (at the required 12 kgf/cm2). Of course, I didn’t look at the situation from the inside with an endoscope, but when I looked through it with a flashlight I saw that the pistons weren’t particularly washed.
• I decarbonized it with laurel in front of the capital, in principle, an autopsy showed that the product works.
• I tried LAVR on a Honda. I used it according to the instructions and left it to sour overnight. After uncoiling, the first attempts to start the engine were unsuccessful. After starting, white smoke poured out of the exhaust pipe. Plus the characteristic stench. After changing the oil, I drove for 20 minutes at a speed of 120. As a result, traction improved and starting the engine became easier.

• Pros:
• There is no need to look for instructions for use; it comes complete with a syringe and tube.

• Minuses:
• Purely prevention, therefore not effective in case of ring sticking and oil consumption.

Decarbonization EDIAL It is a fuel additive, which is why it is classified as a “soft” cleaning method. Therefore, you don’t have to change the oil, but it is still recommended to change the spark plugs. The product is designed to remove carbon deposits from combustion chamber parts.

Edial decarbonizer does not contain alkalis, acids or solvents. Unlike liquids poured directly into the cylinders, it can not only remove coke from pistons and rings, but also clean valve seats and spark plugs from deposits. The drug contains active reagents and surfactants (surfactants) with enormous penetrating power. But unfortunately, this still does not help him clean the rings and oil channels from varnish deposits.

One bottle of 50 ml equals 40-60 liters of fuel. Moreover, it can be either gasoline or diesel. Edial decarbonization is equally effective for these two types of engines. According to the characteristics stated by the manufacturer, it creates active protection in the form of a thin film on the surface of the piston group parts, which prevents the appearance of carbon deposits. Activation of detergent additives occurs when driving above 60 km/h. You can buy from one of the official representatives of EDIAL products.

• Pros:
• No oil change required after use;
• Cleaning occurs in motion;
• No special instructions are required.

• Minuses:
• Exclusively prevention that does not allow the rings to move if they are stuck;
• You need at least half a tank of fuel in order to proportionally pour in the product and roll it out.

This is an old “grandfather’s” working method that worked quite well on VAZ engines with the Soviet quality of fuel and oil. But progress does not stand still. A mixture of kerosene and acetone is often improved with oil or other chemicals. Like decoking, laurel has a “hard” nature of cleaning from coke and varnish formations. To prepare the liquid, you should assume that it will require about 150 ml per cylinder. Pour into the combustion chamber, just like other products of this group, into a hot engine, and a small amount of oil will improve the effect; it will not allow it to evaporate quickly. Allows you to reduce oil consumption, improve dynamics, and get rid of detonation caused by incomplete combustion of the fuel mixture.

It is necessary to change the oil, since kerosene and acetone are aggressive to oil, so after the procedure it is imperative to change the lubricant. When starting up for the first time and during gas cycles, while the remaining mixture and carbon deposits are being burned, it is better to install old spark plugs so as not to spoil the new ones.

Decoking kerosene + acetone “treat” stuck piston rings due to carbon deposits or after a long period of inactivity of an immobilized vehicle. They also use such a liquid to acidify the piston group parts when cleaning deposits when the engine is disassembled for a major overhaul. Since a lot of cleaning agent is required, and the cost of decarbonization is not small. Therefore, preparing a liquid with decoking properties is one of the best options to save your budget.

To decarbonize acetone and kerosene, you need 250 ml each. each solvent and then add motor oil. The mixing ratio is 50:50:25. In total, this mixture will cost 160 rubles.

Autoparade experts summed up the results of a long-term test of auto chemical products called LAVR ML-202 AntiCoks, designed for decoking piston oil scraper rings and in-place engine repairs

Auto chemical test LAVR ML-202: engine decarbonization

Autoparade experts summed up the results of a long-term test of auto chemical products called LAVR ML-202 AntiCoks, designed for decoking piston oil scraper rings and in-place engine repairs

This page of our portal is dedicated to new technologies for in-place repair of gasoline and diesel engines using auto chemical products from the Lavr Next series. For several years, various autochemical and cosmetic products of this brand have been successfully used by experts of the AutoParad portal on their cars. One of the previous long-term tests was on a popular auto chemical product called LAVR ML-202 AntiCoks, designed for decoking piston oil scraper rings. Their occurrence, as is known, provokes a sharp deterioration in engine parameters, which ultimately leads to the need for a major engine overhaul.

It should be noted that the unique autochemical composition LAVR ML-202 AntiCoks was created by the research and production enterprise "Polikom" together with specialists from the South Ural State University for quick and effective decoking of engines of all types. This auto chemical product is a concentrated complex solvent cleaner that can actively act on tar, coke and carbon deposits formed during the operation of piston engines. The composition of LAVR ML-202 AntiCoks after engine decoking ensures the maintenance and restoration of the performance characteristics of the power unit without disassembling it, which fundamentally distinguishes it from most imported similar means of treatment and repair auto chemicals.

The decoking test using LAVR ML-202 AntiCoks took place in several stages, in one of which five cars of our colleagues from AutoWorld were subjected to decoking: VAZ-2109 with a mileage of under 120 thousand km, Mercedes 190 (mileage 280 thousand km), Volkswagen Passat (200 thousand km), BMW 318i (190 thousand km) and Ssang Yоng (54,000 km). The decarbonization procedure began with compression measurements and recording the owners’ personal feelings about engine performance. In general, the complaints of car owners boiled down to a noticeable decrease in dynamics, a sharp deterioration in engine starting in winter and uneven idling. Compression measurements showed that all cars have a significant spread of readings across the cylinders: for the VAZ-2109 - from 8.0 to 12.5 atm, for the Mercedes 190 from 9.8 to 13 atm, for the Volkswagen Passat from 11.2 to 12 .5 atm, BMW from 10 to 11 atm and Ssang Yong from 11.5 to 13.4 atm.

Auto chemical test: dosage is important when decarbonizing!

Next, as soon as the compression was measured, the technicians, according to the instructions, poured auto chemicals LAVR ML-202 AntiCoks into the spark plug holes of the engines with a syringe. Then the candles were screwed into place to create a “steam bath” and the machines were left alone for one hour, during which time they had lunch and raised a cup of tea for the success of the enterprise. While we were resting, representatives of the Polikom enterprise told us what was happening inside the combustion chamber during the decarbonization process. So, when the drug enters the cylinder of a warm engine, a vapor cap is formed, which affects the tar and coke deposits on the valves, and the liquid itself, seeping through the piston, affects carbon deposits at the molecular level. The latter accumulates on the piston walls and in the gaps between the piston rings and grooves and changes its structure. Within an hour, carbon deposits transform into a loose jelly-like state and subsequently fly out of the combustion chamber and burn out during engine operation.

Auto chemical test: why does the engine smoke when decarbonizing?

After about an hour, the technicians unscrewed the spark plugs, turned off the ignition system, covered the spark plug holes with rags, and cranked the crankshaft with the starter three times for about ten seconds. After that, they installed all the spark plugs in their places and started the cars. What started here!!!
When our “iron horses” warmed up, such active smoking began that cars passing by were caught in a cloud of smoke, and drivers cast puzzled glances in our direction. The owners of our “experimental” cars, on which decarbonization was carried out, immediately felt changes in the operation of the engines, some kind of softness appeared, the sound became quieter and smoother.

After warming up the engines, a test drive followed. The fact is that cleaning of the piston rings and combustion chamber occurs while the engine is running, and the manufacturer allows you to drive the car after autochemical decarbonization. After driving about 10 km, the cars returned to the place where decarbonization began. The owners of all cars unanimously noticed that after decoking there was a clear improvement in throttle response and dynamic performance, and equalization of engine speed at idle. In addition, the Mercedes 190, which participated in decarbonization, lost vibration and dips when pressing the gas pedal; in the Volkswagen Passat and BMW, the gas pedal became softer and more responsive. And the owner of Ssang Yоng, after completing decarbonization, was pleased with the quiet engine and smooth acceleration.

Auto chemical test: compression measurements after decarbonization

Compression measurements showed equalization of indicators in all cars: for the VAZ-2109, as can be seen in the enlarged photo, from 13.5 to 14.0 atm, for the Volkswagen Passat within 12.3-12.5 atm, for the BMW 11.5- 12.0 atm and Ssang Yong 13-13.5 atm. The Mercedes 190 surprised us the most - according to the table of decarbonization results, its compression in all cylinders was set at 13.2 atm.

Unfortunately, it was not possible to carry out a repeated control measurement of compression on test cars after a significant mileage (several weeks passed), however, at the time of preparing this material, the owners of the cars that participated in the decarbonization confirmed the preservation of the results obtained. Thus, we have clearly seen the high efficiency and relevance of engine decarbonization technology using domestic auto chemical products.

After completing a long test, the Moscow representative office of Polikom, the company Lavr XXI Century, collected statistics on decoking using the drug LAVR ML-202 AntiCoks, within the framework of which several hundred engines of domestic and imported cars with mileage from 14,000 km to 316 were processed 000 km. The most important result - the deterioration of engine performance parameters after decarbonization - has not been recorded in any car!

An important point: the compression values ​​in the cylinders of the treated engines after decoking were leveled out for all cars, while:

Compression values ​​in the cylinders increased in 216 cars, the maximum increase in compression was recorded from 3.5 to 12.8 atm
- compression values ​​in the cylinders decreased only in 7 cars, the maximum decrease in compression was recorded from 14.5 to 12.5 atm
- only one car remained unchanged; The most striking examples of decarbonization of engines of different car models are given in this table.

Decarbonization is the best alternative to engine overhaul!

But most of all we were struck by the following fact: according to the words of many car owners who participated in the decarbonization, they were immediately offered (at the car service centers where they went about poor engine performance) to carry out a major overhaul of the engine. These motorists were lucky - they came to us on time for a decoking test and restored the engines of their cars themselves using LAVR ML-202 AntiCoks, thus avoiding completely unjustified and very significant costs for overhauling the power unit.

In conclusion, we note that it is recommended to decoke the engine using auto chemicals LAVR ML-202 AntiCoks every 20-25 thousand km of the car, and when operating in difficult conditions - after 10-15 thousand km. It is advisable to combine the decarbonization procedure with routine maintenance, including flushing the lubrication system, changing the oil and oil filter, and preventing spark plugs. It is recommended to flush the lubrication system before changing the engine oil with a special preparation LAVR, because it was created taking into account the results of decarbonization.

Daily use of a car in urban conditions is a serious test even for the most modern engine. Constant switching of start/stop modes, use of low-grade consumables and unscheduled oil changes are factors that can lead to the need for an urgent engine decarbonization procedure.

If a car has been used in a metropolis for more than a year, a large amount of carbon deposits will inevitably accumulate in its combustion chamber. Carbon deposits also form on the pistons under the rings and on the oil scraper rings. The formation of carbon deposits causes the rings to lose their former mobility and cease to perform their main task, namely, to remove oil from the cylinder walls. This leads to the fact that more and more oil ends up with the fuel in the combustion chamber. As a result, more carbon deposits are formed, the rings begin to coke more strongly and cease to function altogether, which begins to lead the car engine to the need for immediate major repairs.

Causes of coking of combustion chamber elements and the main signs of soot formation

Carbon coating of the combustion chamber and oil scraper rings is a process that does not occur on its own. There are several main reasons that lead to the formation of carbon deposits and the need for urgent engine decarbonization:

If the vehicle is operated continuously, and the above problems have not arisen, coking of the piston rings and other elements of the combustion chamber may occur when the vehicle’s mileage approaches 100 thousand kilometers. Determining the presence of carbon deposits on oil scraper rings, pistons and cylinders is quite simple using the following indicators:

• There is a decrease in one or more engine cylinders;
• Oil consumption has increased - the car consumes more than 300 grams of oil per 1000 kilometers;
• It comes from the exhaust pipe.

If the indicators described above begin to manifest themselves, it is necessary to decarbonize the engines as quickly as possible. Operating a car with carbon deposits on oil scraper rings and other elements of the cylinder-piston group seriously increases wear of parts. If decoking is not carried out in time, microcracks may form on the pistons, cylinders and other parts, and the problem can only be solved through a major engine overhaul.

Decarbonizers: LAVR, XADO or our own production from kerosene

Automotive chemicals do not always have a “tricky” composition, and quite often you can do it yourself using improvised means. This statement fully applies to means for decarbonizing piston rings and other combustion chamber parts. Making your own decoking agent is quite simple; to do this, you need to mix acetone and kerosene in a 2 to 1 ratio. If you decide to prepare a liquid for cleaning combustion chamber elements yourself, you should assume that you will need about 150 ml of it per cylinder.

There are dozens of specialized tools on sale for performing engine decarbonization. The most famous are LAUR and XADO, which gained their popularity due to their low price and good properties. Their composition is a little more complicated than just mixed acetone and kerosene, but the cost of such products is appropriate.

When choosing a decarbonizer, it is important to look at how many cylinders one tube is designed for. Most often, manufacturers produce such “chemicals” in small tubes of 10-15 milliliters. One such tube is used for one engine cylinder. Also, when purchasing a decarbonizer, you need to pay attention to the type of engine for which it is used - gasoline or diesel.

Engine decarbonization is a simple process that even a novice car enthusiast can handle. It is advisable to perform it in a garage on a lift or pit, since the procedure involves draining the oil while cleaning the combustion chamber parts from the deposits that have formed. Below we have given in detail the process of engine decarbonization and the procedures that need to be performed in order for the cleaning to be as effective as possible.

Engine decarbonization: procedure

Before you start decoking the engine, you need to warm up the engine a little. Start the car and let it idle for 5-10 minutes until it warms up enough, then turn off the engine and proceed with the instructions described below. A slight heating of the motor is necessary so that the product can better cope with existing carbon deposits. At the same time, it is not recommended to decarbonize immediately after a long trip, since the product poured into hot cylinders will instantly evaporate and the desired effect will not be achieved.

Engine decarbonization is carried out according to the following plan:

1. Remove the high-voltage wires and unscrew all the spark plugs, while it is advisable to remember in what order they were tightened;
2. Next, remove the low-voltage wires from the coils;
3. Drain the engine oil into a separate container and screw the oil plug into place;
4. Pour decoking agent into the cylinders that require cleaning. It is recommended to clean all cylinders simultaneously;
5. Next, lightly tighten the spark plugs (so that the poured product evaporates less) and leave the car for 6 to 12 hours;
6. After the specified time, unscrew the spark plugs. Attention: It is necessary to unscrew it carefully so that the decoking agent, which does not go into the crankcase, as well as carbon residues, does not splash in the engine compartment;
7. Next, unscrew the oil plug and drain the liquid formed from the decoking agent and carbon deposits;
8. After this, fill the engine with the oil that was drained in step 3 of the instructions;
9. Now you need to crank the engine “on the starter” for 5-10 seconds. Attention: This is done without an ignition coil and spark plugs. This procedure is necessary so that when starting the engine with installed ignition elements, water hammer does not occur;
10. Next, make sure that there is nothing left in the cylinders, screw the spark plugs into place and connect all the connectors, after which you can start the engine.

To clean the cylinder-piston group as much as possible from traces of carbon deposits, you need to get behind the wheel of a car and drive it a little, periodically raising the speed to 4 thousand. After 15-20 minutes of trips, return to the pit or lift to change the oil and oil filter for new ones. Attention: When driving with old oil, immediately after decoking, thick white smoke will come out of the car's exhaust pipe. This situation is considered the norm, but it is better to choose places for travel where there are no traffic police officers, otherwise there is a high risk of running into a fine.