Antifriction additives in engine oil. How to delay engine death: test of five engine oil additives Engine additives to reduce knocking

The German drug Liqui Moly Ceratec is stated as a composition containing “special microceramics”. The Belgian Bardahl Full Metal, whose name hints at the metal-clad effect, promises the presence of C60 fullerenes (each C60 fullerene is a stable compound of 60 carbon atoms, a nanosphere with a size of the angstrom order). The Russian Suprotec Active Plus advocated friction geomodifiers. The manufacturer called the Ukrainian XADO 1 Stage Atomic Metal Conditioner “revitalizant and conditioner.” You won’t understand the principle of operation from the name, but the company is famous for its geomodifiers. And “revitalizant” is from this breed. Metal conditioners were represented by the American SMT Oil Treatment.

But something else is more important - the increase in torque and its growth in the low and medium speed zone. This is what ensures the improvement in vehicle dynamics that is noticeable to most drivers.

Mechanical losses

The first reason for the increase in power is the reduction of mechanical losses. They were measured on a stand using the scrolling method. The engine was warmed up to operating temperature and the fuel supply was turned off - the set speed was maintained by the electric motor of the stand. The power it consumes is approximately equal to the power of the mechanical losses of the motor.

And again all the drugs had an effect. The best performance is achieved by Suprotec and Bardahl, which reduced friction losses relative to basic tests of “clean” engines by 8–9% at high speeds and by 13–15% in starting modes and at minimum idle speed. By the way, the increase in engine torque obtained on the external speed characteristic is close to the amount of reduction in mechanical loss torque.

Compression

The second reason affecting the increase in engine power is an increase in compression. It was measured before and after testing on a fully warmed-up engine, maintaining a constant rotation speed (300 rpm) with the electric motor of the stand.

On a “healthy” engine, there is not just an increase in compression, but also its alignment across the cylinders. On average, plus 0.2–0.3 bar. A greater increase on serviceable engines should be alarming, because it is usually observed against the background of significant deposits in the combustion chamber.

Fuel consumption

The 20–30% reduction in consumption promised by many magicians is not there, but the 3–7% obtained is also a result. It is very important that savings significantly depend on the operating mode.

The greatest savings, exceeding 10%, are observed at idle and at low loads, when the influence of mechanical losses is maximum. In rated power mode the effect practically disappears. This means that in city traffic jams, fuel consumption will be significantly less, and on the highway the savings will be no more than 2–3%.

Tribological composition Suprotec Active Plus for gasoline engines, Russia

Approximate price 1450 rub.

(requires two bottles per treatment) Promised to reduce noise, facilitate cold starts, increase engine life and wear protection.

+ When treating the engine in a relatively good condition, it gave the greatest effect. The results last a long time, so you can trust the stated validity period of up to 50,000 km. - Using the drug in two stages is not very convenient. When treating a “sick” motor, it was not as effective as in the first stage of testing. And a little expensive.

Toxicity

Changes in indicators argue with measurement error. On older carburetor cars, the gain would be more noticeable: when friction is reduced, their idle speed goes up, and in order to lower them, the mixture is leaner. There, the dependence of toxicity on the degree of enrichment is very steep - that’s why CO emissions fell from 3–4% to 1% and below. The electronics maintain a constant mixture composition, and the neutralizer additionally cleans the exhaust, so the effect is minimal. And the reduction in residual hydrocarbons on current engines is due to a decrease in oil consumption due to waste. Our measurements showed that engines after treatment with the preparations began to consume 15–45% less oil.

Wear

We assessed the content of wear debris in oil samples taken at the end of the tests, and also weighed the piston rings and bearing shells.

The effects of drugs from different groups are not the same. Bardahl and Liqui Moly compounds better protect crankshaft bearings, while Suprotec and XADO protect piston rings and cylinders, judging by the iron content in used oil samples. Apparently, bearings operating at lower contact pressures and more favorable lubrication conditions partially compensate for wear by taking “building material” from Liqui Moly and Bardahl preparations. And rings operating under conditions of limited lubrication, at higher temperatures and high contact pressures, are better protected by layers formed by friction geomodifiers.

In general, all treated engines have less wear products than the control engine by 12–60%, depending on the type of composition. This indirectly hints at an increase in engine life.

How are the patients?

The previous part of the tests confirmed what we had seen before. But, as far as we know, no one has tried to treat an artificially “damaged” motor, especially in a comparative mode. We remind you: we cut marks of a fixed depth on the bearing shells and working surfaces of the piston rings. Oil pressure dropped sharply, power decreased, fuel consumption and exhaust gas toxicity increased. Will additives help now?

They worked another 60 hours on each engine. The engines clearly improved, although to varying degrees: just a little when using SMT, significantly after Bardahl, Liqui Moly and Suprotec.

The oil pressure increased, the power of mechanical losses decreased, but the indicators did not reach the level of a “healthy” engine. Since the initial data of all “sick” motors are slightly different (it is extremely difficult to “spoil” the engines identically), we compared not absolute, but relative values.

The mechanism of each drug also affects the effectiveness of treatment. And the result also depends on the operating modes in which different friction modes can be realized. In principle, there are two of them: boundary, when the thickness of the separating oil layer is comparable to the average total height of roughness on the surfaces of rubbing parts, and hydrodynamic, when the thickness of this layer is significantly (at least three times) greater than the height of the roughness. Geomodifiers significantly improve performance in the idle and light load zones. They are more effective where boundary friction regimes predominate and hydrodynamics are insufficient. But in medium and high speed modes, where hydrodynamics rule, compositions like Bardahl are more effective. Why? We will explain this below when we consider the structure of the surfaces of parts treated with different compositions.

The only composition that gave a slight (4–6%) increase in the hardness of the surfaces of the main and connecting rod journals was Suprotec. We did not find any lasting effect when using other drugs.

We also sacrificed several liners, making them into samples for a friction machine in order to measure the friction coefficients in the liner-shaft pair. The oil in which the friction pair operated also contained the tested drugs. We studied the dynamics of changes in this parameter over the course of 250 thousand loading cycles.

Anti-friction additive for engine and transmission oils Liqui Moly Ceratec, Germany

Approximate price 1700 rub.

Claimed reduction in friction and wear over 50,000 km. Special microceramic particles are used together with an “additional chemically active” element that fills micro-irregularities.

+ The positive result for all tested positions is not the greatest, but visible and stable. Easy to use. Relatively inexpensive. - Is there any persistence of the effect for the declared 50,000 km? Tests have shown that the reduction in friction coefficient is not as significant as with other drugs

When using friction geomodifiers, a clear stage of pair breaking-in is observed: the friction coefficient is reduced by almost half. In the model treated with Suprotec, in the second half of the test it generally settled at a minimum level. With XADO, the reduction in the friction coefficient remained in the second part of the tests, but the rate of its change fell. Measurements of oil temperature confirm this, because it depends on the friction force.

For Bardahl and Liqui Moly compositions, on the contrary, the coefficient of friction first drops, and then begins to rise again! It seems that the layer formed by these compounds begins to work at a certain point. This means that it requires constant replenishment - therefore, these compounds must be constantly present in the oil, in contrast to the compositions of the group of geomodifiers.

In addition, we compared the microprofiles of the surfaces of the liners of “sick” motors in the areas of specially applied marks - before and after the healing procedure.

Engine oil additive SMT Oil Treatment, USA

Approximate price 700 rub.

Declared reduction in oil consumption and exhaust smoke, increased mobility of piston rings, increased power and reduced fuel consumption, increased compression.

+ The price is attractive, but rarely found on sale. There is a general trend of increasing engine parameters. - The resulting effects are slightly higher than the measurement error - it will be difficult to feel them during the operation of the car.

Tribotechnical processing of the engine smoothes the working surfaces, reducing the overall height of micro-roughness and the size of friction defects - marks that we created on purpose. And small risks that formed naturally during engine operation may completely disappear. The explanation is simple: the drugs in this group contain enough “building material” that can be used to repair damaged surfaces. The leader in this matter is the drug Bardahl.

Geomodifiers give the same effect, but it is less pronounced - the process resembles polishing. We cannot say how long the recovery effect will be. After all, the previous part of the tests, carried out on a friction machine, showed that metal-clad compositions require their constant presence in the oil.

Engine oil additive Bardahl Full Metal, Belgium

Approximate price 2500 rub.

Positioned as a new generation additive based on C60 fullerenes, which reduces friction, restores compression and reduces fuel consumption.

+ The composition worked well in all positions. The reduction in friction was the most significant, hence the visible effect on fuel consumption and power. - The effect is great, but not “long-lasting”! The composition requires reuse at every oil change. Will it pay off?

Results of the long journey

So, all compositions have a positive effect on the working surfaces of friction units. The height of microroughness decreases, and the operating conditions of the bearings improve, since the boundary friction zone is reduced and, accordingly, the hydrodynamic friction zone increases. Defects in friction surfaces are reduced or completely healed - the load-bearing capacity of the engine bearing units is restored. Antifriction layers are formed, which significantly reduce friction forces. Geomodifiers even slightly increase the hardness of surfaces! As a result, the mechanical loss power and wear rate are reduced. As a result, this means a reduction in fuel consumption, an increase in engine power and its service life.

Will the ingredients harm the oil? Tests have shown that the physicochemical parameters of oils when working together with tribo compounds change almost in the same way as during normal aging. Conclusion: no harm done.

Tests have shown that the tested compositions make life much easier for motors. Which composition to use depends on the initial condition of the engine. To improve the performance and increase the service life of new or slightly worn engines, compositions from the group of geomodifiers are preferable. Moreover, they are used on a “fill in and forget” principle, without constant re-processing. But engines in a “pre-infarction” state need potent agents - such as Liqui Moly and Bardahl. Such therapy should be lifelong, but it will delay death, reduce oil appetite and increase the reliability of the engine, reducing the likelihood of its unexpected failure.

If you ask car enthusiasts whether they will use an additive in motor oil, the answers will certainly be divided. Some will be ardent supporters of the use of additives, others will be equally ardent opponents. The majority will remain neutral and prefer to abstain from any opinion.

Those who oppose the use of the additive believe that the manufacturer has done everything he could for the engine, and that it will not be better. This statement is both true and false. Purely economically, it is important for the automaker that the car fulfills the warranty period without any problems, and then the worries of the car owner (who will still come for a new car, and the sooner, the better for the manufacturer).

What about the car owner? He is the only one who is interested in ensuring that all the mechanisms of his car function properly for as long as possible. It turns out that he needs to use additives during operation. Many companies build their business on this, offering drivers a panacea that is sometimes dubious and even harmful to the engine...

Among reliable and proven suppliers of automotive chemicals, the German concern Liqui Moly occupies a special place. Products intended for both the mass consumer car market and the professional segment, including automobile oils and additives, have undergone multiple tests, which confirms the consistently high quality of the products. In our article we will talk about the Liqui Moly CeraTec oil additive.

According to the manufacturer, the Liqui Moly CeraTec additive is created on the basis of a synthetic molybdenum-organic complex and microceramic particles. The additive smoothes out micro-irregularities and strengthens the surface layers of the metal, providing an extremely low coefficient of friction. The resulting anti-friction film has a long-term effect and lasts for 50,000 km. Can be used with any standard motor oils. Allows you to increase engine life, reduce fuel and oil consumption, increases engine power and reduces noise.

We have previously published several tests of this additive. Thus, in Germany, at the research center Automobil-Pruftechnik Landau GmbH (APL), the additive was tested for load in a friction pair on gears. During tests, it showed more than twice the load on the contact patch compared to standard motor oil. .

We also conducted laboratory tests of the drug to determine its composition. The identified set of microelements indicates that the product uses a molybdenum-organic complex together with classic anti-seize additives based on ZDDP and microceramics based on boron nitride: .

In this test, we check other claimed properties of the additive, namely reducing engine noise.

For this purpose, the additive was poured into two cars - Toyota Tundra I, produced in 2001, 4.7 l engine, mileage 120 thousand km and Mitsubishi Pajero IO, produced in 2000, GDI 1.8 l engine, mileage 150 thousand. km. The oil in both cars was fresh. Engine noise was measured before applying the additive, immediately after applying the additive, and after approximately 200 km.

Table for measuring engine noise after using the Liqui Moly CeraTec engine oil additive (dB)

Measurements for the Toyota Tundra I showed a 1.2 dB reduction in engine noise immediately after Liqui Moly CeraTec was added to the engine, and a 1.8 dB reduction after the engine had been driven for 200 km.

The measurement results for the Mitsubishi Pajero IO are more impressive. Immediately after filling with Liqui Moly CeraTec, the noise level of the engine decreased by 1.4 dB, and after driving 200 km - by as much as 6.5 dB. During the tests, it was noted that after using the additive, the noise of the hydraulic compensators went away, which most likely determined such a significant reduction in engine noise.

In the video is Dmitry Rudakov, technical specialist at Liqui Moly.

conclusions

The test results showed that after using the Liqui Moly CeraTec engine oil additive, there was a decrease in engine noise level, and for one of the test cars the decrease was 6.5 dB, which is very significant. If we do not limit ourselves to the current test, but look at the totality of previously conducted studies, we can say that Liqui Moly CeraTec confirms the properties declared by the manufacturer.

Liqui Moly CERA TEC – oil additive to reduce friction, test

PRODUCT FEATURES: Liqui Moly CERA TEC friction reducing oil additive is a suspension based on microceramic solid lubricant and chemically active substances in mineral oil. The combination used reduces friction and protects the engine and gearbox from wear, which prevents costly repairs and extends the life of the units.

Liqui Moly CERA TEC additive has high mechanical and thermal stability and provides excellent lubrication even under the most extreme conditions. Its use improves the smooth running of the engine and gearbox. The additive saves energy, reduces fuel consumption and thereby emissions of harmful substances. At the same time, Liqui Moly CERA TEC contacts directly with the metal surface and protects the engine for a mileage of up to 50,000 kilometers, including during oil changes.

APPLICATION FEATURES: Liqui Moly CERA TEC engine oil additive is self-mixing and compatible with all commercially available engine oils. It is ideal for oil lubricated gearboxes, pumps and compressors. The Cera Tec additive has also been tested on vehicles with turbocharging, catalytic converters and particulate filters. In new vehicles, Liqui Moly CERA TEC supports engine break-in and protects it from excessive wear. With a particle size of less than 0.2 microns, the additive has absolute permeability through the filter elements of oil filters. However, its use in automatic transmissions and motorcycles with a clutch running in oil is prohibited.

When using the Liqui Moly CERA TEC oil additive, it must be poured into the engine or transmission oil, and it does not matter whether it is hot or cold. It is recommended to fill in Liqui Moly CERA TEC when changing oil - along with fresh oil; in other cases, after using the additive, at least 5000 km of residual mileage must remain before the next oil change so that Liqui Moly CERA TEC can act on the mechanism parts.

HOW DOES Liqui Moly CERA TEC OIL FRICTION ADDITIVE WORK? Ceramic particles with a structure similar to graphite fill the roughness present in the metal and thus prevent direct metal-to-metal contact. A chemically active substance (frictionmodifier - tribomodifier) uses the available friction energy for fluid - that is, non-abrasive - smoothing of irregularities.

TEST RESULTS

WHAT WAS TESTED: During bench tests, APL Center researchers determined the relative scuffing load-bearing capacity of lubricating oils. When turning the gears of the stand under load, rolling and sliding friction occurs simultaneously between the side surfaces of the teeth. Under load, the oil film between the tooth surfaces may fail, resulting in dry friction between the surfaces. This will mean that the oil has not done its job. Because of this, phenomena such as short-term local welding and ruptures of the side surfaces of the teeth occur, as a result of which scuffing occurs and the initially smooth side surface of the teeth is damaged. The smoothness of the gear train deteriorates until the gears fail.

HOW THE TESTS WAS DONE: on a test bench using the FZG method, 6% of the Liqui Moly CERA TEC oil additive was added to the test oil. With each series of tests, the load on the gear train increased due to the increase in load weight. This increased the pressure between the gear surfaces. The purpose of the test was to achieve a force level that would cause damage to the gear surfaces. This stage is considered achieved when the sum of the lengths of all burrs on the gear teeth is more than 20 mm. When this force is reached, the test ends.

The control oil reached the 4th force level, after which surface damage occurred. At the same time, the load on the gear, lubricated with oil with the addition of the Liqui Moly CERA TEC additive, reached the 9th force level.

Liqui Moly CERA TEC significantly increases the power reserve, this confirms the protection against wear by small ceramic particles, concludes Peter Kunz, who supervised the tests.

Koontz's initial skepticism recedes: “I am stunned by the test result! The product provided an increase in effort. Indeed, everything is much better!”

Tests have confirmed that when using the Liqui Moly CERA TEC oil additive, friction is reduced, thereby reducing wear of rubbing parts. This, in turn, leads to the fact that the units can withstand a greater load, which, with regular use, can lead to a reduction in repair work and an increase in service life.

If you are interested in choosing a product such as an additive for hydraulic compensators, it means that you have heard noise and knocking from this part of the car more than once. Of course, it is best to immediately contact a car service center, where professionals will find out the cause of the knocking noises and advise the best way out of the situation. However, it is not always possible to get repairs immediately after the knocking starts. Therefore, you can try to solve the problem on your own. To do this you will need this same additive. But which one should you choose if there are now more and more manufacturers and brands appearing? Moreover, each product promises to be ideal for your car and solve all problems with hydraulic compensators.

Additive for hydraulic compensators eliminates knocking

In this article we will try to look at the most popular oil additives so that you can make your choice easier. But first you need to find out why hydraulic compensators, in general, can knock and why.

Causes of knocking hydraulic compensators

To understand how an oil additive works, you need to understand what causes hydraulic lifters to knock. The main causes of knocking can be divided into two types:

The first can be attributed to reasons of a mechanical nature: if defects appear on the surface of hydraulic compensators or it becomes dirty, the plunger pair is produced, and the oil supply valve sticks. This also includes the penetration of air into the hydraulic compensator, although this can be caused by both an insufficient amount of oil and the hydraulic compensator mechanism itself.
The second type of reason for knocking in the engine is associated with a change in the oil formula, which may vary depending on the climatic conditions in which it is used; with contamination of the oil channels and filter; with engine overheating; problems with the pump and so on.

The knocking may stop after the engine warms up. But only a competent minder can determine the true reason for its appearance, as well as determine which compensator is knocking. If you can’t turn to it now, you can use special additives for a while. And then, they will only help if the problem is really a clogged valve or oil filter, and the parts themselves have not completely worn out.

What are additives used for?

As mentioned above, if you hear a knocking sound in the hydraulic compensators, then it makes sense to use an additive. However, there is still fierce debate about the effectiveness of using these funds. Some people talk about their undoubted benefits, while others consider them a generally useless addition. Let's try to understand the need to use an additive.

If the knocking is caused by some minor reasons, for example, a dirty filter or a stuck oil supply channel, then it can be eliminated by using an additive. By using them, you can extend the service life of the hydraulic compensator.

Additive added to oil

An additive is a special liquid that is added to the oil. It removes all deposits in the oil channels from the inside, which is why the knocking goes away. Using this product allows you to wash out parts of the HA and, on the other hand, makes the oil less viscous. Thanks to the change in formula, the oil in a more liquid state passes through the HA channels much more easily. Opponents of using an additive say that a thinner oil will carry with it all the contaminants that the additive has removed from the surface. Accordingly, all the dirt will go inside the HA.

From this side, the additive should be considered only as an auxiliary agent, which is designed to prevent the knocking of the hydraulic fluid ahead of time. If you use high-quality oil, it will already contain all the necessary additives. If the oil is not of very high quality, then the use of an additive is understandable.

If knocking has already begun and you decide to use an additive, it is best to completely dismantle the system and perform a comprehensive cleaning in advance. Only in this case will it be possible to see the true cause of the knocking. If the reason was the wear of parts or the appearance of some defects on their surface, then no additive, even the most expensive and high-quality one, will help correct the situation.

Synthetic cleaner Fenom. According to the manufacturer, this additive contains components that significantly improve the quality of engine oil, as well as improve the mobility of piston rings. Does not destroy seals, gaskets and converters. Research has shown that this cleaner is classified as organic. It contains phosphorus, zinc, calcium and magnesium. It must be used as follows: after warming up well and turning off the engine, fill in the cleaner in the ratio of 1 package of additive per 3 (maximum 5) liters of oil. After this, you need to start the engine for fifteen minutes, drain the old oil and fill in new oil after changing the oil filter.

Synthetic cleaner Fenom

Liqui Moly Ol Schlamm Spulung. The manufacturer promises that this additive is ideal for working with different types of engines, improves the quality of the oil, efficiently, but at the same time gently removes contaminants. Contains calcium, which removes dirt well, and phosphorus and zinc, which are responsible for anti-wear of parts. This additive is often used for cars that have been filled with low-quality oil for a long time, if water has entered the oil system, if there is a large amount of contaminants, for cars that have been idle for a long time, and also when knocking occurs in hydraulic compensators.

Ten-minute Hi-Gear Motor Flush. Designed to change the oil after 10 minutes of engine idling. One package is enough to cleanse 4-5 liters of oil. Does not destroy caps, seals and seals.

Hi-Gear Motor Flush

ER (ER). A very effective additive, especially for old and used cars. It costs an order of magnitude more than the options presented above, but it allows you to significantly extend the time between oil changes and reduces fuel consumption. In addition, users of this additive note improved friction between parts.

As you can see, there are many different additives for different cars and at different prices. Of course, you shouldn’t expect a miracle from such a remedy, since there can be a lot of reasons for the knocking of the hydraulic compensator. And it’s not always about the appearance of pollution. If you hear an unusual knocking sound while driving, it is best to contact a specialist as quickly as possible, who will remove the hydraulic system, clean it, drain the oil and finally determine the main problem. If the cause can be eliminated with an additive, give preference to well-known brands and do not run to cheap products. What additive do you use? Do you think it is wise to use such products or is it better to initially use only high-quality oil? Share your opinion in the comments!

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Choosing a proven and reliable manufacturer is the first and main sign by which you should choose an additive. How does an additive for hydraulic compensators affect the operation of all vehicle components, and which manufacturers inspire the most confidence? What features of using additives should every car owner know about?

Why are additives needed?

Cleaning valves and passages, reducing noise during operation and ensuring optimal operation of all components are the key functions of an additive for hydraulic compensators. The composition is represented mainly by components that increase the effectiveness of the composition and its thickness. There are also additives designed to flush the system by adding it to the engine oil.

The use of the additive is allowed on any type of car - both gasoline and diesel engines. The product does not change the viscosity of the oil and does not enter into chemical reactions with it. Despite this versatility, the type of additive and manufacturer should also be considered.

As for properties, it is worth highlighting the following:

elimination of noise in case of problems with hydraulic compensators;
valve openings are cleaned;
the properties of the oil are improved, therefore, the quality of lubrication of internal elements is improved;
versatility in terms of use on different types of engines;
the environment is not further polluted.

Selecting an additive to eliminate knocking

Serious pathologies in the operation of hydraulic compensators are a reason to immediately contact technical service. If problems have just begun to appear, and changing the engine oil has not met expectations, special additives can be a good solution. We are talking about situations where the parts are not too worn out or it is not possible to carry out timely repairs. It remains to choose the best option, since the compositions can be as follows:

antifriction;
anti-smoke;
protective;
restorative and others.

Original additives from proven brands deserve primary attention, the use of which will eliminate knocking. It is also worth considering the combination with hydrocracking and synthetic motor oils.

Choose additives whose composition is specifically aimed at eliminating knocking. Universal remedies in this case will not be so effective.

If you choose from manufacturers, the leading ones can be considered Hado, Liqui Moli and Wagner. They belong to the category of expensive ones, but their quality fully corresponds to the cost, and the level of quality is exactly the criterion that you should rely on first of all. More budget options do not demonstrate similar effectiveness.

Liquid Moly

The product has been produced for a long time and belongs to the high-quality category, effectively restoring the operation of the hydraulic compensator. The Liqui Moly additive for hydraulic compensators is suitable as an additional substance for oil. The hydraulic compensator is restored immediately after entering the system. With slight wear of parts, the noise will be eliminated fairly quickly. If the driver has ignored the knocking for too long, or there is other damage in the system, the problem is unlikely to be eliminated with an additive alone.

According to the manufacturer, the use of the LIQUI MOLY additive is allowed with any oil, but the main criterion that must be met is the originality of the product. Compatibility with catalysts is also observed. You should not count on an immediate effect, since the result can only be noticed after 50 - 300 km. It is also beneficial to use this additive to prepare a car before selling it, so that the buyer has no reason to ask for a discount.

XADO

XADO is a Ukrainian manufacturer whose products are no worse in quality than the additive for Liqui Moly hydraulic compensators. The additive line also includes restoration products that demonstrate effectiveness in eliminating knocks and noise. It is advisable to use it not only if there are problems with the hydraulic compensator, but also after purchasing a new car. The essence is the effect of preserving the working components of the machine, which over time will be less subject to wear.

Wagner

We are talking about a German manufacturer, which in terms of popularity is at the level of previous ones. The composition contains components whose action is aimed at eliminating knocking and noise in hydraulic compensators, as well as cleaning hydraulic compensators, which is an effective prevention of their further clogging.

Features of use

You can purchase the additive in a special jar, which is enough for 5 - 6 liters of engine oil. It is allowed to add an additive both to the filled oil and immediately after changing it. Subsequently, the engine must be warmed up to operating temperature to activate the action of the additive. If you use it at every oil change, efficiency can be significantly increased.

When purchasing, it is necessary to take into account the volume of both the additive can itself and the oil system of your vehicle. For example, one can is enough for an engine with a capacity of up to 5 liters of oil.

To summarize, it is worth noting that there is no significant difference between the considered manufacturers, since their efficiency is almost the same, as is their pricing policy. Try to focus on reviews and the purpose of purchasing the additive. As mentioned earlier, it is better to abandon universal products and give preference to additives with a specific purpose.

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Additive against knocking in the engine: how to remove the knocking of hydraulic compensators

Let's start with the fact that as the engine wears out, as well as taking into account a number of other factors and conditions, the power unit may begin to operate noisier or even knock. In some cases, the cause of the knocking may be engine oil and a decrease in pressure in the lubrication system, while in others the engine knocks as a result of an increase in the gaps between the mating parts.

The nature and cause of engine knocking may vary. There is a knocking sound of pistons, connecting rods, valves, crankshaft bearings, etc. Often, the appearance of such extraneous sounds indicates the need to adjust or disassemble the engine to perform troubleshooting and repair. Among the various products on the auto chemical market, you can find such a solution as an additive against engine knocking.

It is important to understand that if the power unit requires repair, then in this case the use of an additive can only mask the problem for a while, but not solve the problem. If we talk about plain bearings (connecting rod and main bearings), then this is quite fair. However, it is worth highlighting that in some cases the additive can be an effective way to combat knocking. For example, if we are talking about hydraulic compensators. Let's look at this issue in more detail.

Why are hydraulic compensators knocking?

As a rule, on many modern used engines, noise from hydraulic compensators appears, which drivers usually detect when cold. Let us immediately note that in such a situation, a short-term knock of the main engine, which disappears a few seconds after starting a cold internal combustion engine, can be considered the norm. If the hydraulic compensators continue to knock for quite a long time or the knocking does not go away even after warming up, this indicates problems with these elements.

In a nutshell, a hydraulic compensator is a device that is designed to automatically adjust the thermal clearances of the valves of the gas distribution mechanism of an internal combustion engine. In fact, the hydraulic compensator is a plunger that receives engine oil from the engine lubrication system.

Without going into details, the compensator sits between the valve and the camshaft cam. The principle of operation is that when the valve is closed, the main valve is pressed against the camshaft cam by means of a spring. Then, when the shaft is turned, the hydraulic compensator is compressed, a little engine oil is squeezed out of the plunger pair through a special valve, and then the oil outlet is blocked.

Afterwards, a gap is formed again, which, when the shaft is rotated 180 degrees, will be leveled again due to the spring of the plunger pair and a fresh portion of oil pumped into the main body. This operation of the hydraulic compensator allows, regardless of the engine temperature and the degree of thermal expansion of the parts, to always set the required valve clearance. Hydraulic compensators avoid the need to adjust the valves; their presence eliminates any adjustments and simplifies the maintenance of the internal combustion engine.

How to remove the knocking of hydraulic compensators with an additive and what composition is best to fill

It is quite obvious that in the event of serious problems with the main engine, it is better to immediately begin repairing the cylinder head. If the knocking of compensators appeared not so long ago, and replacing the engine oil with fresh one did not give noticeable results, then special additives may be a way out of this situation.

In other words, if the parts are not very worn out or repairs for one reason or another cannot be carried out in a timely manner, a high-quality additive in many cases can neutralize extraneous noise, sometimes for a fairly long period.

The main task is to choose the optimal option, since there are a large number of restoring, protective, anti-smoke, anti-friction and other compounds from different manufacturers on sale. First of all, attention should be paid to original additives from well-known manufacturers, which are designed to eliminate HA knock and combine well with synthetic or hydrocracked motor oils.

So, if the engine is noisy and an additive is needed to solve the problem, it is best to remove the knocking of hydraulic compensators with compounds that are specifically designed for this. More precisely, there are additives on sale that are aimed specifically at reducing the knock of the hydraulic fluid. Such additives may be better and provide a more pronounced effect than universal complex products for protecting the engine, improving the properties of the base oil, etc.

First of all, given the variety of different formulations on the market, you should not give preference to cheap products and products from unknown manufacturers. You should also remember that there is always a risk of purchasing a counterfeit product. For this reason, it is better to buy additives at official points of sale or at trusted auto stores.

As for the additives themselves, as practice shows, to eliminate the knocking of hydraulic compensators, three compositions should be distinguished:

Liqui Moly Hydro Stossel Additive
XADO for hydraulic compensators
Wagner Windigo to improve main battery performance

These products have proven themselves well; practical use in most cases clearly demonstrates that after pouring these additives into the engine, a lasting positive effect is observed. In other words, the relatively high cost of these drugs compared to analogues is fully justified by their effectiveness.

We also recommend reading the article on how to determine what is knocking in the engine. From this article you will learn about what knocking noises in the engine indicate certain malfunctions, how to determine the cause without disassembling the internal combustion engine, as well as what methods help determine the nature of the knocking and accurately localize the problem that has arisen.

The Liqui Moly composition improves the performance of hydraulic compensators and also partially restores worn surfaces in the engine. The additive must be added to the engine oil. Although the composition is compatible with lubricants from different manufacturers, it is optimal for use with LM engine oils.

In the event that the wear of the main engine is insignificant, after a relatively short period of time (after a run of about 50-100 km), the knocking of the main engine and extraneous noise should disappear or the knocking intensity should noticeably decrease. Also, when using an additive for hydraulic compensators together with Liqui Moly oil, the manufacturer promises an additional improvement in the characteristics of the oil itself and an increase in lubricant life.

As for XADO, this manufacturer also offers an additive that is similar in principle to Liqui Moly.

The composition, after being introduced into the oil, improves the properties of the lubricant, cleans the oil system and channels, and also, to one degree or another, “restores” the surfaces. As a result, it is possible to reduce or completely eliminate the knocking of hydraulic compensators in the engine.

The list is completed by a cleaning additive for the Wagner engine. The manufacturer is not so well known in the CIS market, but many drivers speak positively about the products of this brand.

The company offers a specially developed line of products to combat the knocking of hydraulic compensators. Let us note that in practice, especially when comparing Wagner additives with other well-known analogues, the effectiveness may not be so noticeable, however, at the time of writing this material, this solution is the most affordable compared to competitors.

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Features of choosing an additive for a hydraulic compensator

When purchasing a car, everyone hopes that it will work flawlessly, helping to move quickly in any direction. And certainly no one wants their car to sit idle in the garage. Any vehicle sooner or later needs repair work. It’s good if the problem is noticed in time, then it will be much easier to fix it. It is for this reason that we recommend listening carefully to the sounds of the running engine. Any extraneous noise warns that the power unit is not functioning correctly, and its components need to be replaced. The causes of extraneous noise may include old motor oil that has lost its technical characteristics, the appearance of gaps between individual components of the engine, as well as a decrease in pressure in the system.

An additive for hydraulic compensators can effectively eliminate knocking.

If knocking occurs, in most cases it is necessary to repair the engine and subject it to troubleshooting. However, if you need to find an emergency solution to the problem, experienced specialists may recommend using additives, but then still repair the power unit, since the additive in such cases can only be considered as a temporary solution. It should be kept in mind that a hydraulic lifter additive can act as a very effective way to combat knocking. It is these additives that we will try to tell you more about.

Hydraulic compensator: technical problems

A hydraulic compensator is a type of system that is available in modern cars. Its main purpose is the automatic adjustment of thermal valves, carried out by supplying motor oil of a strictly designated volume. The quality of such a procedure largely depends on what kind of motor oil was previously purchased and, accordingly, poured into the vehicle engine. It is for this reason that you should purchase only a high-quality product, so as not to incur more significant costs later. Sometimes the car owner cannot carry out repairs on his own, so he has to go to a service station and pay for the services of specialists.

Why can the hydraulic compensator knock?

Not every occurrence of knocking should cause panic. If a knocking noise occurs when the engine is cold and disappears after a short period of time, then you can relax and not take any action. Unfortunately, if the knocking continues to disturb the car owner even after the engine has warmed up, it means that the problem really exists and it needs to be eliminated. One of the reasons for an alarming knock is wear of the valves, camshaft cams, and plunger pairs. Also, knocking can be caused by low-quality oil, which can lead to failure of hydraulic compensators, and along with this, knocking. If you continue to ignore such a technical problem, after a short period of time you may encounter stuck valves, as well as a serious failure of the gas distribution mechanism.

Is it possible to use additives to reduce the knocking of hydraulic compensators?

Please note that if you use additives for hydraulic compensators, you will be able to:

clean valves and channels, remove all deposits;
eliminate knocking;
increase the service life of the components of the power unit.

Having used additives for the first time and convinced of their high efficiency, you will forever become their fans, and will also recommend them to your fellow motorists.

Review of several popular additives

It is important not just to purchase any additives against the knocking of hydraulic compensators, but to choose a quality product. When purchasing a craft, you certainly cannot count on excellent results. Before visiting a car store, we recommend that you familiarize yourself with the range of auto chemicals offered and study the quality characteristics of such products. It wouldn’t hurt to study the ratings of existing additives before purchasing them and pouring them into your own car.

Liqui Moly Ol-Schlamm Spulung (the additive significantly improves the quality characteristics of the oil, gently cleans surfaces of deposits, and prevents wear of parts);
XADO (an additive produced by a Ukrainian manufacturer, it has a more favorable price, while not being inferior in quality characteristics to its previous analogue);
Wagner Windigo (an additive that recently appeared on the car market, but very quickly managed to gain high popularity among motorists due to its excellent quality characteristics).

Procedure for using funds

At the auto store you will purchase additives sold in small bottles. The contents of one bottle are designed for five to six liters of oil. You can add the additive not only at the moment when the oil is changed. If such a need arose some time after replacing the engine lubricant, do not worry, such a procedure will still be justified. It is not recommended to use additives if the oil has already exhausted its service life, so its urgent replacement is required. Do not forget that the result will be high only when you pour in the additives in the right quantity, so first calculate how many bottles you need to purchase. After you have poured some of the additives for the hydraulic pusher into the oil filler hole, start the engine and let it warm up thoroughly. Additives begin to act only when the engine is warm.

So, we hope that you have now been able to understand the question of how important additives are, what help they can provide, how to use them correctly to eliminate problems and prevent undesirable technical consequences.

Features of choosing an additive for a hydraulic compensator Link to main publication

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Etc. Often, the appearance of such extraneous sounds indicates the need for adjustment or disassembly of the engine for repair and repair. Among the various products on the auto chemical market, you can find such a solution as an additive against engine knocking.

Read in this article

Why are hydraulic compensators knocking?

As a rule, on many modern used engines, noise from hydraulic compensators appears, which drivers usually detect when cold. Let us immediately note that in such a situation, a short-term knock of the main battery, which disappears a few seconds after starting the cold one, can be considered the norm. If the hydraulic compensators continue to knock for quite a long time or the knocking does not go away even after warming up, this indicates problems with these elements.

In a nutshell, a hydraulic compensator is a device that is designed for an automatic internal combustion engine. In fact, the hydraulic compensator is the one that receives engine oil from the engine.

Without going into details, the compensator sits between the valve and the cam. The principle of operation is that when the valve is closed, the main valve is pressed against the camshaft cam by means of a spring. Then, when the shaft is turned, the hydraulic compensator is compressed, a little engine oil is squeezed out of the plunger pair through a special valve, and then the oil outlet is blocked.

Naturally, the first reason for knocking of the main engine is wear of these elements. It is important to understand that supplying lubricant into thin channels in order to be able to automatically select the gap also significantly increases the requirements for the quality of the engine oil itself.

In other words, oil that is unsuitable in its properties or dirty can damage hydraulic compensators, as a result of which they first begin to knock and make noise. Further, the problem may progress, which is expressed in the form of malfunctions, hanging valves, etc.

How to remove the knocking of hydraulic compensators with an additive and what composition is best to fill

It is quite obvious that in the event of serious problems with the main housing, it is better to immediately begin repairs. If the knocking of the compensators appeared not so long ago, but the new one did not produce noticeable results, then special additives may be a way out of the current situation.

Hydraulic compensators: what they are, what function they perform, hydraulic compensator malfunctions and symptoms. Do-it-yourself repair and washing of hydraulic compensators.

Knocking of hydraulic compensators: the main reasons for the appearance of extraneous sounds on a cold engine or a warm engine. How to find a knocking main engine without disassembling the internal combustion engine.

The engine is a complex structure with a large number of rubbing elements made of different materials. In the combustion chamber, the air-fuel mixture burns, which entails the release of heat. In the cylinder, where the combustion process directly occurs, there is an oil film that comes into contact with the open flame. When turning on the engine in the cold season, the oil should not be very thick so that the pump can pump it through the system. Therefore, it must retain its properties over a wide temperature range. Next we will talk about pouring it into a car engine to eliminate knocking, we will also consider the principle of their operation and method of application.

Additives are used to eliminate engine knocking.

What are additives used for?

Engine oil must have the following characteristics:

uniform viscosity over a wide temperature range;
good anti-friction properties;
washing, anti-foam and anti-corrosion properties.

To achieve the specified indicators, it is necessary to add to the main component. When the engine is running, some of the additives burn out and cease to perform their functions, which can lead to the formation of extraneous noise during the operation of the power plant. The knocking occurs due to an increase in the gap between the rubbing surfaces. An additive containing soft metals will help reduce this gap and get rid of knocking. Circulating through the lubrication system, small particles of metallic inclusions settle on the rubbing surfaces, thereby reducing the gap. When oil interacts with an open flame, it oxidizes, which causes a decrease in viscosity; this indicator also affects the appearance of unpleasant noise in the engine. A viscosity-increasing additive will help reduce knocking.

Causes of extraneous noise in the engine

A knock indicates that the entire engine or its individual parts have reached the end of their service life. Repairing the power plant or replacing worn parts is guaranteed to get rid of unpleasant noise. You can get rid of knocking for a short period of time by adding additional additives. Such components are able to reduce the gap between rubbing surfaces (due to the application of small particles of soft metal on them) and minimize friction (due to the application of antifriction components).

During operation of the power plant, most of the combustion products are released into the atmosphere, but some enter the crankcase. The oil contains components that keep these particles from precipitating. But when a large amount of combustion products accumulates, they cannot retain them, and solid sediment begins to form in some places. When combustion products get between the piston and the cylinder, the piston begins to knock due to clogging of the oil scraper rings.

Review of several popular additives

If you want your car to last as long as possible with minimal maintenance costs, you should take care of it. Adding one of the oil additives will help increase power, improve fuel economy, cold starts and more.

Procedure for using the product

To effectively use the full potential of the additive, it is necessary to strictly follow the instructions written by the manufacturer itself. Add exactly the amount he recommends. For the most part, even a slight deviation from the recipe can cause irreparable damage to the engine. Most often, the product is poured directly into the engine filler neck, separately from the oil (during its replacement). Before use, the components must be thoroughly mixed and only then poured out.

Operating principle

Once inside the power plant, all additives are mixed and distributed throughout the system. Some elements are deposited on parts with an increased gap, reducing it, while others circulate through the system, providing an increased service life of the power plant. It is important to understand that additives are not intended to restore old or dirty oil, but to increase its quality. Also, with the help of them it is impossible to “reanimate” a power plant with a long service life and the presence of serious malfunctions; they will only help prolong and improve the operation of your engine.