Home Engine Hydraulic oil than dilute so that it does not freeze. Recommendations for the use of hydraulic oils - ODO "Belgidromash". What gives mixing oil with diesel

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Hydraulic oil than dilute so that it does not freeze. Recommendations for the use of hydraulic oils - ODO "Belgidromash". What gives mixing oil with diesel

- this is working fluid For a hydraulic system, which is used in various installations and equipment (hydraulic pipe benders, machine for butt welding of plastic pipes, etc.). To provide a long service life hydraulic machine, It is necessary to correctly select the hydraulic fluid and accurately follow the instructions of specialists and manufacturers when replacing it.

Viscosity and temperature

When choosing a hydraulic oil, it should be considered viscosity and temperature ambient When operating a hydraulic system. Specialists do not recommend using oils all year round. Especially relevant for used equipment. Drinking parts in the process of operation wear out, and the gaps between them become larger, so they require a certain viscosity of the oil to avoid leakage. In the case of using winter hydraulic oil, it should be remembered that when heated, its viscosity drops, and this leads to a leakage of the fluid between the pump housing and the plunger, and respectively - to a decrease in the performance of the hydraulic pump itself, the pressure reduction in the system.

Using summer oil in winter leads to low pumping of the pump and, as a result, to oil starvation. Most often it happens when operating equipment, equipped with hydraulic pumps high power (Excavators, truck cranes, etc.).

It is categorically unacceptable to dilute the frozen oil with diesel fuel in order to reduce its viscosity. This can lead not only to the destruction of the sealing of the hydraulic cylinders, but also creates explosive situations. Despite the presence in the hydraulic oil of special additives that prevent the formation of foam in the process of operation of the hydraulic system, air bubbles are still formed. And if fuel is added to the oil, then when the oil is heated as a result of the intensive operation of the system in these bubbles, a flammable mixture is formed. Under the influence of pressure, there is a fire and melting of the seal of hydraulic cylinders. At best, the result of such tricks will be the inevitable repair of the hydraulic system.

Most optimal option in this case There will be a follow-up to the instructions provided by the manufacturer of hydraulic oil. Here we will list the basic requirements, which are mandatory for all types of working fluid.

Hydraulic oil should be stored in a clean closed canister.
With each replacement, it is necessary to pre-clean the hydraulic tank, remove all sediments in it, accumulated during the previous operation.
The hydraulic systems are filled with oil with a pump, and not through the fill, it reduces the likelihood of entering the dirt system.
When filling in the hydraulic system, it is necessary to use a filter, as the purity of the oil even in the manufacturer's container does not always comply with the requirements propagating hydraulic equipment.
Hydraulic oil that had contact with air is subject to storage no more than 2 years. At the same time, during the re-operation of not yet exhaust oil (for example, obtained from the hydraulic system, the operation of which is interrupted by the need to repair) should be pre-conducting its characteristics. If this takes place when using heavy machinery, the costs of the test procedure will be significantly less compared to the cost necessary for the purchase of a new hydraulic fluid.

It should be remembered that according to statistics up to 70% breakdowns of the hydraulic system are associated with its pollution or ingress of foreign particles. Therefore, compliance with these simple rules will allow you to increase the life of your hydraulic machines.

Statistics show that up to 70% of all hydraulics breakdowns are caused by the contamination of the system or inhibit foreign particles. Any professional mechanic knows that the purity of the hydraulic oil is a pledge long operation hydraulic machines. But cleanness is not all. It is equally important to choose the properly choose the hydraulic fluid and competently replace. We will talk about it today and talk.

When choosing a hydraulic fluid, two parameters should be taken into account. The first is the ambient temperature during operation. The second is the viscosity of the fluid in the operating range of temperatures. The second parameter is indicated in the operation manual for each specific machine. Some sources state that the viscosity of the recommended hydraulic fluid depends on the type of hydraulic pump, which is used in the system. This is not entirely true. The viscosity at the operating temperature is calculated, based on the bandwidth of the narrowest channels in the hydraulic system, since the hydraulic fluid should have a certain speed of leakage through these channels, otherwise the hydraulics will not work correctly. Thus, on many building machinesusing the same hydraulic pump models, different types and hydraulic fluid brands are often used. For example, in hydraulic systems modern excavators The so-called "proportional" valves with a very small channel cross section are used. The system is quite complicated, with electronic control components. If it is incorrect to choose the viscosity of the hydraulic oil for such a hydraulic, then the machine will not work in full force. It may reduce the accuracy of performing operations or their speed. The type of recommended oil is indicated, as a rule, in the cab on special information signs or directly on the hydraulic tank, next to the filling neck. On modern import technician today, it is most often recommended for the use of HVLP high-index class oil. This is a hydraulic oil with a more modern additive package than in HLP class oils. The oils of this class have more stable temperature and viscous indicators, and in Siberian operating conditions, especially in winter, they work perfectly in any weather. Manufacturers indicate these oils the temperature range of applications from - 30 to +60 degrees Celsius. In addition to stable temperature characteristics, the oils of this class have a multifunctional package of additives that improve antioxidant, anti-corrosion, anti-wear, depressor, demulsifying, anti-liquid properties.

Navy against HVLP

IN russian appliances For a long time, two brands of hydraulic oil were used: NMGS and MGE-46. In principle, these oils have good performance, but only for that technique, which is operated in a relatively light mode: loaders, exfolotes-loaders, dump trucks, lightweight cranes. If there is such a need, it is not forbidden to use this oil and in imported technique, which does not work in very harsh conditions. However, it is not recommended to apply oil data in hydraulics, which is controlled by servo drives. If we are talking about hydraulics to which very serious requirements for reliability and performance are presented, experts advise paying attention to imported hydraulic oils. However, not so long ago russian market Domestic products appeared, which in their characteristics practically do not give up modern imported analogues. For example, TNK a few years ago released a series hydraulic oils. In the new line of this manufacturer, along with MGA and the analogues of the All-season Oil of VMGZ, lubricants of HLP and HVLP classes are already presented. The quality of Russian oils of this class, experts are still expressed carefully. He is not praised, but also do not prevent serious complaints. The basis for this oil The domestic raw materials are still served. As not weird service life in these oils in 2-3 times less than imported analogs.

But use in the hydraulics of the so-called "spindle" (industrial oils and-20, and-30, etc.), which is so massively applied in industry, is strictly prohibited. These oils have very high hygroscopicity, that is, when contacting air, they begin to actively absorb water molecules. This leads to disastrous consequences for the hydraulic system, ranging from corrosion and ending with the hydrowards in the system. In addition industrial oils There is practically no necessary package of additives that protect the inner surfaces of the hydraulic system from premature aging.

As for preferences in the choice of a particular hydraulic oil brand, then in this matter it is possible to completely rely on what is called to your taste. The fact is that significant differences in the composition of the oils of the same class different manufacturers Not noticed. Basic additives for all companies are the same. Manufacturers basic oil All over the world is not so much. The difference in the composition, of course, is. Each manufacturer seeks to allocate some important characteristics of its oil. One bet on temperature properties, the other - on increased protection against corrosion, the third is an increased service life and so on. These are already nuances. About the hydraulic oils of Russian production, which are shipped to the market without specifying the trademark, cannot be said. Therefore, even if you make a choice in favor of oil-class oils or MGU, it is better to buy production products russian manufacturers (LUKOIL, TNK and others). The choice in favor of one or another brand is often due to the value of the technique itself. The difference in price between oils of one class of different manufacturers can be up to 20%. As a rule, the owners of expensive new cars prefer not to save on oils, especially since during the warranty period they are forced to agree on those oils that they offer them in the dealer service center. Buyers and owners of used import cars prefer the Russian leaders of the market for lubricants and foreign manufacturers of the average price segment.

The most important rule when choosing the applicable oils is, firstly: to be guided by the instructions of manufacturers of equipment, which are guided primarily on generally accepted international standards (SAE, ISO.); And secondly: from all products satisfying the stated requirements, give preference to the most authoritative trademarks and reliable suppliers. Otherwise, malformations are possible. Currently, SELECT Lubicants produces hydraulic oils of the SL-Hydraulic series applicable in all cases when high-quality reliable hydraulic oil is needed, which has a high viscosity index and capable of working in a wide range of temperatures and pressures in the most adverse climatic conditions.

In winter and summer ...

Hydraulic oils are not recommended to use year-round. Especially when it comes to used technology. In the pumps with a great degree of wear of the gaps between the driving details more. If the winter oil is also used, the viscosity of which, with severe heating, becomes very low, then the performance of the hydraulic pump will decrease sharply. The oil injected by the pump will simply spill between the plunger and the pump housing. At the same time, not only the pump of the pump is reduced, but also pressure in the system. Work in winter on summer oils It can lead to oil starvation of the pump due to its low pumping. This is especially often on the technique, which is equipped with powerful hydraulic pumps (truck cranes, concrete pumps, excavators, etc.). Some "craftsmen" to reduce the viscosity of the frozen oil are poured into the hydraulic system some amount of diesel fuel. This leads to very poor consequences. The fact is that during the operation of the hydraulic system, despite the presence of antiposed additives in the oil, air bubbles are formed in the hydraulic fluid. With intensive operation, oil boosts. If fuel is present in the oil, then inside such bubbles instead of ordinary air is formed by almost finished fuel-air mixture. When compressing the oil in the hydraulic cylinders, absolutely the same process occurs as in the diesel engine: the mixture in bubbles under pressure is flammable and very quickly destroys the seals of the hydraulic cylinders. Specialists, repairing hydraulics, when disassembling cylinders, melted seals quite often come across the result - this is the result of adding "diesel" to the oil.

Rules of "Working Hygiene"

Instructions for replacing hydraulic fluid are available from all manufacturers of special equipment. Unfortunately, not everyone reads them, but comply with the units at all. Let us remind the basic rules. Oil should be stored in a closed clean canister. Before the fill fresh oil From the hydraulicock should be removed all the dirt, which in it was asslaved for the months of previous operation. Pour oil only from pure capacities. The hydraulic systems should be refilled by pumping the oil with the pump, and not fill. In this case, the likelihood of dirt from the surface of the container inside the system is significantly reduced. Fill the hydraulic systems should be filled through the filter, since the purity of the liquid even in the factory container does not always meet the requirements hydraulic equipment. Oil, which in contact with air, can be stored no more than two years. If it turned out that you had to drain the oil from the hydraulic system, which did not have time to work out a period (such often happens with different hydraulics breakdowns), then before pouring it back, it will not hurt to analyze its characteristics. It is not so expensive. If we are talking about hard technique with large filling volumes, then this procedure justifies itself.

Practice shows that up to 70% of all the breakdowns of hydraulic systems are caused by the contamination of the system or inhibit foreign particles. All professional mechanics already know that the purity of the hydraulic oil is the key to the long-term operation of the hydraulic system. But cleanness is not all. It is equally important to choose the properly choose the hydraulic fluid and competently replace. Especially this question became relevant for the owners of the technique lately, when prices for foreign hydraulic oils grow, and budgets for maintenance of equipment are reduced.

General recommendations

When choosing a hydraulic fluid, two parameters should be taken into account. The first is the ambient temperature during operation. The second is the viscosity of the fluid in the operating range of temperatures. The second parameter is indicated in the operation manual for each specific machine. Some sources state that the viscosity of the recommended hydraulic fluid depends on the type of hydraulic pump, which is used in the system. This is not entirely true. The viscosity at the operating temperature is calculated, based on the bandwidth of the narrowest channels in the hydraulic system, since the hydraulic fluid should have a certain speed of leakage through these channels, otherwise the hydraulics will not work correctly. Thus, on many building machines using the same hydraulic pump models, different types and hydraulic fluid stamps are often used.

For example, the so-called "proportional" valves with a very small channel cross section are used in the hydraulic systems of modern excavators. The system is quite complicated, with electronic control components. If it is incorrect to choose the viscosity of the hydraulic oil for such a hydraulic, then the machine will not work in full force. It may reduce the accuracy of performing operations or their speed. The type of recommended oil is indicated, as a rule, in the cabin on special information signs, or directly on the hydraulic tank, next to the filling neck. On modern import technician today, it is most often recommended for the use of HVLP high-index class oil. This is a hydraulic oil with a modern additive package. The additives in the HVLP oil differ significantly from the additive package in the HLP class oils. The oils of this class have more stable temperature and viscous indicators, and in Siberian operating conditions, especially in winter, they work perfectly in any weather. Manufacturers indicate these oils the temperature range of applications from - 30 to +60 degrees Celsius. In addition to stable temperature characteristics, the oils of this class have a multifunctional package of additives that improve antioxidant, anti-corrosion, anti-wear, depressor, demulsifying, anti-liquid properties.

Navy against HVLP

In Russian appliances, two brands of hydraulic oil are also used for a long time: NMGS and MGE-46. These oils have good performance, but only for that technique, which is operated in a relatively light mode: Loaders, excavators-loaders, dump trucks, light cranes. If there is such a need, it is not forbidden to use this oil and in imported technique, which does not work in very harsh conditions. However, it is not recommended to apply oil data in hydraulics, which is controlled by servo drives. If we are talking about hydraulics to which very serious requirements for reliability and performance are presented, then experts are still advised to pay more attention to imported hydraulic oils.

However, not so long ago, domestic products appeared on the Russian market, which in their characteristics practically do not give up modern imported analogues. For example, LUKOIL has released a series of new, highly reliable and highly efficient hydraulic oils a few years ago. In the new lineup of hydraulic oils, LUKOIL, along with MGA and all-season Oil of VMGZ, lubricants of HLP and HVLP classes are already presented. These are hydraulic oils of the LUKOIL geyser, which will come around to the buyer approximately 2-3 times cheaper than imported analogues when absolutely equal quality indicators. Outcome - a significant reduction in costs and release money on other goals.

But use in the hydraulics of the so-called "spindle" (industrial oils and-20, and-30, etc.), which is so massively applied in industry, is strictly prohibited. These oils have very high hygroscopicity, that is, when contacting air, they begin to actively absorb water molecules. This leads to disastrous consequences for the hydraulic system, ranging from corrosion and ending with the hydrowards in the system. In addition, in industrial oils there is practically no necessary package of additives that protect the inner surfaces of the hydraulic system from premature aging.

As for preferences in the choice of a particular hydraulic oil brand, then in this question you can fully rely on what is called to your taste. The fact is that essential differences in the composition of the oils of the same class in most manufacturers are not selected. Basic additives for all companies are the same. The basic oil producers around the world are not so much. The difference in the composition, of course, is. Each manufacturer seeks to allocate some important characteristics of its oil. One bet on temperature properties, the other - on increased protection against corrosion, the third is an increased service life and so on. These are already nuances. About hydraulic oils russian productionwhich are shipped to the market without specifying the trademark, this cannot be said. Therefore, even if you make a choice in favor of oils of the CMGZ class or MGA, it is better to buy products from leading Russian manufacturers (LUKOIL and others).

The choice in favor of one or another brand is often due to the value of the technique itself. The difference in price between oils of one class of different manufacturers can be up to 20%. As a rule, the owners of expensive new cars prefer not to save on oils, especially since during the warranty period they are forced to agree on those oils that they offer them in the dealer service center. Buyers and owners of used import cars prefer the Russian leaders of the market for lubricants and foreign manufacturers of the average price segment.

In winter and summer.

Some "craftsmen" to reduce the viscosity of the frozen oil are poured into the hydraulic system some amount of diesel fuel. This leads to very poor consequences. The fact is that during the operation of the hydraulic system, despite the presence of antiposed additives in the oil, air bubbles are formed in the hydraulic fluid. With intensive operation, oil boosts. If fuel is present in the oil, then inside such bubbles instead of ordinary air is formed by almost finished fuel-air mixture. When compressing the oil in the hydraulic cylinders, absolutely the same process occurs as in the diesel engine: the mixture in bubbles under pressure is flammable and very quickly destroys the seals of the hydraulic cylinders. Specialists, repairing hydraulics, when disassembling cylinders, melted seals quite often come across the result - this is the result of adding "diesel" to the oil.

Rules of "Working Hygiene"

Fill hydraulic systems It follows through the filter, since the purity of the liquid even in the factory container does not always meet the requirements of hydraulic equipment. Oil, which in contact with air, can be stored no more than two years. If it turned out that you had to drain the oil from the hydraulic system, which did not have time to work out a period (such often happens with different hydraulics breakdowns), then before pouring it back, it will not hurt to analyze its characteristics. It is not so expensive. If we are talking about hard technique with large filling volumes, then this procedure justifies itself.

Why is NMGZ production LUKOIL cost more than competitors?

In fact, everything is very simple. LUKOIL produces oil VMGZ -60, and competitors - VMGZ -45. The difference between these two products is understandable even from their name. Operating temperature NMGZ LUKOIL - -60 degrees, and NMGZ competitors -45. These are absolutely different products, they include different additives, and they have different guests. And, by itself, they are in different ways.

Viscosity, as is well known, is the main qualitative indicator of any hydraulic oil. For all-season hydraulic oil, the "stability" of viscosity is especially important when temperatures decrease. The experience of using both of these "varieties" of NMGS oil shows that the viscosity of the oil VMGZ production of competitors begins to increase already at -30 degrees, and the temperature -45 is "absolutely" critical for it. Simply put, at -45, the oil will simply freeze in the pumps. The Oil of the Navy produced by LUKOIL in this plan is relatively different from the rest, the declared viscosity will be saved and at lower temperatures.

According to the statements of representatives of the LUKOIL, their oil retains the necessary viscosity value and at -60, and even at a lower temperature. That is, the temperature -60 for oil VMGZ production LUKOIL is not critical. But for the quality, as you know, you should always pay. At the moment, the NMGZ production of LUKOIL on average by 20-30% more expensive competitors. However, when choosing a manufacturer, you should always remember that the cost of repair during a breakdown of expensive technique is incomparable with its maintenance costs.

Surely every car owner with a diesel engine will be interested to know whether it is necessary to add oil to diesel and for what it is done at all. In most such cases, motorists use two-stroke oil, but what does it differ from the usual automobile?

Why is it possible to add oil to diesel fuel?

Motorists with experience were heard that tough work diesel engine Indicates violation of injection advanced adjustments or equipment problems. In this case, you will have to go to a hundred, so that the masters make diagnostics and, if necessary, repaired the motor.

Critical consequences of adding oil to diesel

Another cause of tight operation of the motor can be refueling diesel fuel with a low cetane number. This parameter denotes the ability of the diesel skin to ignite, that is, at its low values, the ignition will be very late. As a result of this, by the time of the inflammation of the diesel fuel, almost all of its volume will be injected into the chamber. This will lead to the fact that the mixture will flash too active, and in the cylinders there will be an increased pressure, resulting in a motor and will work too hard.

The reduced cetane number is as a result of dilution of diesel kerosene or gasoline, which is sometimes practiced in the cold season, so that the fuel does not freeze. Another reason is the unscrupulousness of the gas stations, which sells poor-quality wasolar. By adding oil into diesel engines, the CH value will increase, and the motor will start working more softly. But is everything so unequivocally or still have any side effects?

What do specialists say?

Specialists have their opinions on whether it is possible to pour oil in diesel fuel? Those who speak out against this initiative, motivate their opinions with the following features:

Automakers prohibit dilute diesel fuel than anyway, even special additives from third-party companies.
Each oil contains resinous substances and heavy hydrocarbons, detergents and anti-antipid additives. After the combustion of all of them remains a nagar or even ash.

Right piston after adding oil to diesel

Usually, the owners of diesel engines pour two-stroke oil into the diesel fuel, explaining it with a smaller content of the additives in it. In this case, there is also one side effect: due to incomplete burning of lubrication, its products are locked up the nozzles, clog the EGR valve, the details of the turbocharger and dairy filter.

As for the specialists who speak out against the addition of oil into diesel fuel, there are also quite a lot of such. This is especially true of old diesel engines with pin nozzles. As for engines with multi-dimensional sprayers, they also do not recommend adding oil to the fuel for them, but there are those who are not against such an initiative.

What gives mixing oil with diesel fuel?

On forums dedicated to different models Car, you will find many motorists experimenting with the addition of 2-clutter oil into diesel fuel. They are confident that they increase the lubricants of the diesel fuel. Also on such forums there are many and those who doubt the benefits of a similar solution.

Scored scented filter

Before adding oil into diesel fuel, you must consider certain features:

If the motor has a diesel filter, the addition of oil into the diesel fuel is not recommended, otherwise the resource of the filter element will significantly decrease.
When burning two-stroke oil Solutions are settled on the nozzles. Regardless of the minimum concentration of lubricating composition in diesel, modern nozzles can fail.
The solids resulting from oil burning in the composition of the diesel fuel lead to the caliper ignition of the candle tips.
Flares occur in the cylinder because of the hot ash, and the ignition candle ceases to function normally. This happens rarely, but it is impossible to exclude such a chance.

It should be noted that not every motorist notices the improvement of the operation of the diesel engine after adding oil into fuel. The fact is that the lubricant can lead to the formation of sulfuric acid. There is a sulfur in the additive, so it is better to abandon the experiments on modern machines.

Why began to add oil to diesel?

Add oil to diesel engine for diesel engines has started many years ago. They explained this by sinking the work of the unit, the disappearance of vibrations and knocks, so the feeling arose that the oil really gave a positive result.

Crashing diesel injectors

In reality, the same quiet operation of the motor is easily explained. The depreciation of the unit leads to the emergence of extraneous noise when working, as there are gaps between driving items.

When oil is added to the diesel fuel, its viscosity increases, that is, the work of the plunger pair softens and the knock disappears. Due to improving fuel luggage, the pump is experiencing higher loads for pumping fuel, which is harmful to it.

Thus, we do not recommend you to add oil to diesel engine for your diesel engine, otherwise you will only aggravate the situation. Usually such a procedure performs unscrupulous sellers of used machines, which need to do the operation of the motor is more quiet and stable.

One of frequent problemswhich is connected with the operation of the car in the winter period, is such when the engine froze in the engine after the night parking with a significant decrease in the outdoor temperature. In such a situation, the engine fails to be checked the starter to start or turns so slowly that the motor cannot be started.

How to return the fluidity of lubricant or heat the engine crankcase before starting

Let's start with the fact that the engine will start, if the oil froze, is prohibited by any affordable way. It can lead to breakdowns power aggregate, turning inserts, etc. It is quite obvious that when trying to try such a launch, the frozen oil is not pumped up and will not be able to create the desired protective film on the details.

Most. simple way In such a situation is car delivery in warm garage or parking not with its own way. If you are confident that the oil in the motor is high-quality, then after heating the engine can be started, then get to the car service or independently change the lubricant to more suitable option With amendment to current climatic conditions.
In the list of so-called "grandfathers" methods, it is worth noting the additive of gasoline or diesel fuel to the oil in front of the night parking in winter. This method can also be suitable in the event that immediately change the oil to analogue with a smaller viscosity is not possible. Before the parking lot in the engine "on the hot" through the oil-tank neck is poured, on average, 150 grams of gasoline or purified diesel fuel. Thus, the lubricant becomes less viscous. After starting gasoline from the oil system and the CARTER DVS evaporates. The specified procedure can be repeated before street parking, when the maximum cooling is predicted.

Note, with all its apparent simplicity, this method is characterized by one significant disadvantage - oil after contact with gasoline loses its beneficial properties. This means that having solved the problem with viscosity, the problem with the protection of the engine inevitably appears after it is warm up. The addition of fuel into the oil for liquefaction in frost leads to what other loaded elements increase significantly during riding. It turns out if for the old classics of VAZ or unpretentious special equipment on cheap mineral oils such a method is still worth considering, then in the case of a more or less technological engine, it is better to forget about this solution.

Add that even if the old motor, but it was not bad semi-synthetic oil With a package of active additives and other additives, the reaction of these additives on gasoline or diesel oil in oil can be absolutely unpredictable (precipitate, flakes in oil, etc.). All this can lead to blockage of the engine lubrication system and the oil starvation of the motor.

Another way to solve the problem under consideration is the heated of the engine pallet with their own hands. In this case, the best solution will use an industrial hairdryer. The crankcase pallet warms up a certain time, after which it is necessary to check the oil as of the probe. After returning the yield, the motor can be tried to start. Note that some motorists involve household hair dryers for heating, as well as heaters of different types With closed heating elements.

As practice shows, you can warm the engine in the winter with your own hands different ways. In some cases, the situation is sufficiently common when the gas burner is used to heat the oil in the motor, etc. Soldering lamp, etc. Note that in no case cannot be allowed too intensive drumming of the pallet, since, taking into account the sharp drop in temperature, there may be serious consequences, cracks and other defects. Remember, during such procedures, you must adhere to safety!

That in the end

In order to avoid possible problems with severe cooling, some drivers replace places in heated parking in advance with such an opportunity. If the machine will spend the night on the street or in the unheated garage, then it is recommended parallel to replacing the oil on the "winter" option to additionally insulate the hood, podcast space and the engine, install the premium heater, use the auto start of the engine and other available solutions. This will slow down the speed of cooling the power unit and prevent decrease in temperature to a critical mark when the oil in the motor begins to freeze.

To test the quality of the oily oil or compliance with the declared parameters, immediately before replacing is extremely preferably checked viscosity. To do this, some car owners pour some oil into the container, after which they are put in the refrigerator or simply leave a canister with butter in the cold. After 10-12 hours, viscosity is estimated. lubricant. In the event that the oil thickened very much or even hardened, its use is not recommended or involves the use of additional measures for heating internal combustion.

Finally, we note that it should not be attempting (for example, mineral oil With more liquid synthetics or semi-synthetic with clean synthetics). This may lead to the fact that additive packages in different oils Reactions come into reaction, as a result of which the lubricant is "folded", there is a blockage of oil channels, oil starvation occurs and the engine wear is significantly increased. Even if visa mixed oil Normally, such a material still inevitably loses its protective, viscous, detergents, temperature and other useful properties.

For this reason, it is not recommended to mix the oils of one type (for example, semi-synthetic with the same or different marking) of different manufacturers, since each individual brand uses its unique patented additive packages. Add, specialists and experienced motorists advise to avoid this practice of mixing motor oils even within the framework of the production of one company.