Poor quality fuel and engine oil with constant use affects engine performance. This is especially noticeable in the combustion chamber where the two consumables meet. As a result, under the influence of high temperatures, the oil scraper rings are clogged with carbon and resin, followed by coking. It is possible to completely remove these formations only by disassembling the engine for flushing, or using highly active chemical means for decoking in a timely manner.

This review presents the best drugs for restoring the functionality of the piston group without the need to disassemble the internal combustion engine, which significantly reduces financial costs (tenfold!). The rating position is based on feedback from experts and owners who have successfully used one of these tools in practice.

TOP-10 best means for de-carbonization of piston rings

10 Rimet

To restore the mobility of piston rings and remove high-temperature varnish and carbon deposits, the highly active Russian-made RiMet chemical component can be successfully used. This tool belongs to the fast-acting hard decoking and is poured into the cylinders through the hole for the spark plug or nozzle (in diesel internal combustion engines). The composition of the mixture actively destroys the structure of resinous-carbon deposits and carbon deposits in the oil scraper and compression rings, as well as on the cylinder walls.

In their reviews, many owners recommend cranking the engine with the ignition off to achieve the best processing efficiency. At the end of the procedure, the internal combustion engine is warmed up for 15 minutes. After that it is necessary to replace the engine oil, otherwise "RiMet" can damage the engine oil seals. For this purpose, it is envisaged to use a flushing additive of the same brand. It is noticed that after processing the parts of the cylinder-piston group, the effectiveness of antiwear revitalizants increases. To increase the resource of the motor, the manufacturer recommends using this tool on an ongoing basis, processing every 20-25 thousand kilometers.

9 FENOM Decocker

Despite the affordable price, FENOM Decocker decoking can cope with varnish and sludge deposits in the piston group. Many car owners who have used this tool in practice strongly recommend increasing the processing time 4 times from the interval specified by the manufacturer. This will restore the mobility of the oil scraper rings and soften deposits in the piston channels. During processing, they will be cleaned by cranking the engine without generating a spark. Upon completion of the procedure and the internal combustion engine warming up (up to 15 minutes at a speed not exceeding 2000), the engine lubricant must be replaced, followed by cleaning the oil system with a flushing liquid.

In the reviews of the owners who used FENOM Decocker, the achievement of the set goals is noted. Even in advanced cases, improved engine dynamics and a decrease in fuel consumption were observed. The engine stopped “eating” oil, and the compression on the cylinders was leveled out. However, the tool cannot always provide the desired result - if the owner is late with processing, and the wear of the oil scraper rings has reached critical values, it will not be possible to do without repair work. In all other cases, the effectiveness has been recognized by many users. In their opinion, the regular use of the tool (an affordable price allows almost all car owners to do this) significantly increases the resource of the internal combustion engine.

8 Greenol-Reanimator

One of the toughest, but most effective decoking. Requires responsibility and care during application, since deviation from the manufacturer's instructions can cause undesirable processes in the engine.The highly active composition of the product cleans not only carbon deposits and frees the rings of the piston group from coke sludge. It can easily destroy the seals in the oil system, therefore, after use, it is required to immediately flush and change the lubricant.

At the same time, it is better to clean it with a special oil, and not another additive. It is the neglect of this rule, judging by the reviews, that leads to disastrous consequences - chemical washing does not neutralize the Greenol-Reanimator compounds, and together with the mobility of the oil scraper rings, paint can dissolve on the inside of the pallet (if it is not aluminum).

7 Titanium

This tool is one of the fast decarbonisers and has been tested in practice by many users. It is in no way inferior to the best cleaning additives presented in this rating. At the same time, there is an undeniable price advantage. Titanium is able to restore and equalize the compression of the engine, thereby extending the life of the component parts of the cylinder-piston group.

The restoration of the mobility of the oil scraper rings cannot replace the overhaul of the motor, however, timely processing will prevent their premature wear and failure. If the coking process is not at a critical stage (when only disassembly and repair remains), Titan can significantly improve engine parameters. To assess the degree of effectiveness, the manufacturer recommends performing control measurements of compression before the start of treatment and after its complete completion. If the desired result is not observed or there is a partial improvement, it makes sense after cleaning and changing the oil (with preliminary flushing) to use reducing additives.

6 ANTIKOX VERYLUBE (XADO)

One aerosol can (330 ml) is enough to process 20 cylinders - this is the most cost-effective way to de-carbonize piston rings. Effectively liquefies all possible types of deposits. It has an extremely simple method of use - by means of a special hose (supplied with the cylinder), the active substance is sprayed into the cylinder through the spark plug hole. The whole process takes no more than 40 minutes. In this case, the bulk of the deposits is removed through the same plug hole - in order not to damage the paintwork of the car, they should be covered with a rag when scrolling the crankshaft.

Residues of softened coke and carbon deposits are removed through the exhaust system - it is necessary to ensure that the engine runs for 15 minutes at high speeds. At the same time, it is not recommended to come close to the pipe - too much "dirt" will fly out. Owners consider ANTIKOX VERYLUBE one of the most effective and inexpensive ways to restore the functionality of oil scraper rings. After application, judging by the feedback from the owners, there is a clear improvement in the dynamics of the motor. The engine runs quieter, without interruptions, oil consumption is significantly reduced, and the compression in the cylinders not only rises, but evens out between them. The traction power also increases.

5 Edial

The Edial piston ring decarbonizer enters the combustion chamber together with the fuel - the owner does not even need to unscrew the candles before processing. It is enough to pour the contents of the bottle into the filler neck and fill the required amount of fuel (both gasoline and diesel engines can be processed). The main advantage of this procedure is the absence of the need to change the oil and, of course, ease of use, available to almost all motorists.

After the mixture prepared in this way from the fuel and the highly active substance is depleted, the mobility of the compression and oil scraper rings will be restored, the oil consumption will return to an acceptable level, and the engine will please with increased throttle response and dynamics.In the reviews of users who checked Edial in practice, special attention is paid to the smoothness of the changes that occurred during the processing. At the same time, the agent has a cleansing effect on the atomizers of nozzles in injection and diesel engines, removing plaque from them that has undergone repeated temperature treatment. As the owners note, "Edial", although a simple, but quite effective tool, with regular use (every 10-15 thousand km) significantly postpones the need for overhaul of the cylinder-piston group.

4 Wynns Combustion Chamber Cleaner

The high-quality product Wynns Combustion Chamber Cleaner is able to gently remove carbon deposits, varnish deposits and carbon sludge deposits in the cylinder-piston group of only gasoline engines. The tool restores the mobility of the oil scraper and compression rings, and in addition cleans the intake manifold with valves. Does not adversely affect the catalyst.

The unusual way of using it surprised many owners - the reactive substance is supplied through the vacuum hose of the engine. At the same time, its high efficiency is noted - in the reviews it is indicated that the compression in the cylinders is equalized, the vibration of the engine is reduced and the detonation is eliminated. Also, many pay attention to the minimum level of oil consumption and an increase in the power of the unit. In addition, the cleaning process does not require changing the lubricant and practically cannot harm the engine, since this tool does not come into contact with the rubber seals of the internal combustion engine at all.

3 GZOX INJECTION & CARB CLEANER

This tool, depending on the method of application, has the ability to clean the combustion chamber, decarbonize the piston rings, or remove deposits in the carburetor. The chemical composition of GZOX INJECTION & CARB CLEANER provides instant dissolution of carbon deposits, resins and formations on their basis and restores mobility to oil scraper rings.

The owners who used GZOX INJECTION to restore the engine's performance, in their reviews note the high efficiency of the product - literally immediately after cleaning, the engine returns to its former stability, and its throttle response increases. As practice has shown, if the decoking is done according to the instructions, the result will definitely be positive. The lack of a recovery effect can only mean a diagnostic error or indicate the fact that the oil scraper rings are completely worn out. After applying a highly reactive chemical, the manufacturer recommends a complete cleaning of the lubrication system and an engine oil change.

2 Laurel ML-202

One of the most popular decarbonizing agents for piston rings on the market is in great demand among buyers, since its quality is no worse than its more expensive imported counterparts. The highly effective composition of this agent is able not only to restore the mobility of the oil scraper rings, but also to remove all types of deposits in the cylinder-piston group. Many owners recommend increasing the treatment time from 2.5 hours to 12 hours for greater effect, however this can lead to loss of tightness of the rubber seals in the oil system. However, many car enthusiasts do this. In this case, immediately after the end of the procedure, it is required to replace the motor lubricant with preliminary flushing, and it is better to perform this operation with a special oil, and not with an additive.

With proper processing, the plaque on the cylinder walls becomes loose and can be easily removed without disassembling the internal combustion engine through the spark plug hole. When acting strictly according to the instructions, there is a complete disposal of coke deposits that block the normal functioning of the rings. And if their wear is not in a critical state, the result is sometimes just fantastic! Judging by the reviews, the effect of the impact of "Lavr ML-202" can be compared with a major overhaul, but the cost of auto chemistry is many times lower.Oil consumption drops sharply, the working pressure on the cylinders is leveled, and the engine itself becomes more responsive, and literally "comes to life".

1 Shumma EX Engine Conditioner

One of the most easy-to-use decarbonizing agents will not cause difficulties even for novice car enthusiasts. If a car mechanic strongly recommends overhauling an engine that fumes with oil with different compression in the cylinders, then with the help of Shumma EX Engine Conditioner it is possible to avoid this procedure and significantly save your budget. This is one of the most powerful tools for restoring the mobility of the oil scraper rings and removing any deposits in the cylinder-piston group.

It is best not to wait for the "dead" bedding, but to perform the cleaning procedure at intervals of 70-90 thousand km. This will increase the resource of the internal combustion engine and postpone major repairs for an indefinitely long period. After processing, the motor reduces vibrations during operation, stops heating, its power definitely increases. In the responses of the owners, there is also a decrease in smoke and lubricant consumption (in some cases of timely processing, there is an almost complete absence of oil vapors in the exhaust), and fuel consumption returns to the level of a "fresh" car.