Fluid liquid similar to oil. What will happen if not changing the engine oil: consequences in the photo

Quality and tint motor oil - One of the most important and investigators discussed in the Wednesday. What should be good oil? What frequency should it be changed? What should I do if his color or consistency changed? What consequences can the use of such oil? Does it behave to the problems in the engine?

Normal motor oil: how it should be

Quality and color machine oil depend on the set of factors:

• quality of fuel fuel;
• repair of the engine of the car;
• the quality of the oil itself;
• conditions in which the car is operated;
• frequency of his shift;
• additives added to its composition;
• used base.

A special problem is that the oil changed its color from amber on dark or black after 4-6 thousand mileage kilometers, no. Car owner should start worrying if it starts to foam or thick.

Is it possible to ride if the oil changed its color and viscosity

If the lubricant darkened, then you can ride it. Moreover, if after a few thousand kilometers of the run, the oil did not change its shade to the more dark, then it must be changed - it does not cope with its functions and transfers all soot into the engine.

The blackening of the oil does not force it immediately to change it. In papers to the car, the manufacturer indicates the intervals of the replacement of lubricants. Recommendations It is advisable to fulfill, but it is worth considering individual features vehicle and its operation mode - for example, if large loads often turn out on the car, the replacement period supplies He is strongly reduced.

The most terrible change in engine oil is its thickening. If the lubricant does not flow, but it resembles a solidol or boiled concentric, then it's bad. It is necessary to replace in the near future, otherwise the engine will work on dry, which will lead to deformation of valves, connecting rods and pistons.

Why color changes

The composition of any engine oil includes washing additives. Such additives are used to dissolve products resulting from incomplete fuel combustion. In the dissolution of combustion products, the oil acquires a characteristic black shade. Despite the fact that particles of soot are in suspension, it does not affect lubricating characteristics. Accordingly, the driver can use oil for a long time to a planned replacement.

Worrying is worth starting when the oil does not change its color even after a long time of operation. This is not a sign that there is no contamination in the engine: the oil simply does not cope and cannot cleaned them. In this case, it is necessary to change lubricants to new, preferably - another brand.

It is worth paying attention to the time when the lubricant begins. If the color changes immediately after the fill, then either the engine is too polluted or the low-quality fuel used. It is easy to fix this situation - it is enough to rinse the motor and start refilling the car elsewhere.

Causes why darkens in the engine

1. Wear of the cylindro-piston group, which is why fuel combustion products fall into the engine crankcase;
2. The products of the oxidation of low-quality oil with a small volume of additives. Such formulations, entering the reaction with air, are easily oxidized;
3. Old oil remaining in the engine. It is impossible to finally get rid of it - its number will still remain in the nodes of the car. Accordingly, if it was black, then when mixed with the new one, it will change its shade to a more dark;
4. The number of additives in the composition of lubricating fluid. The action of special additives is aimed at reducing friction and dissolving contaminants, so the qualitative composition can be darked over time, since it performs its engine cleaning functions;
5. Overheat power aggregate It can lead to boiling and blackening lubrication up to a change in its consistency, that is, thus thickening oil is easier than simple;
6. Low quality machine oil, not cope with its functions.

What can the use of dark oil

The darkened oil does not harm the engine and knots of the car. Changing the color of lubricating fluid means that it performs its functions and cleans the motor. The only thing to do is to change the oil on time in time according to the manufacturer's recommendations, taking into account the features of operation.

Foaming: What is the problem?

The formation of air bubbles can lead to various negative consequences:

• Lowering the viscosity of lubricant;
• Slow discharge of heat energy, because of which the parts and knots of the car will not be allowed to lubant. The oil in the system is moving along special channels of small diameter, and high pressure should be maintained to lubricate the engine;
• Lack of proper cooling of the parts of the power unit leading to its overheating;
• The friction increases between the parts of the motor, which leads to their rapid wear. In the most running cases, this can lead to hydraulic impact and overhaul Engine.

Motor oil can be foaming for several reasons:

• Penetration into the lubricating system of Tosol transport due to damage to the gasket between the cylinder block and its head;
• Entering water lubricant, which leads to a change in its chemical composition and the formation of an oil emulsion;
• Incompatibility lubricants. When changing the oil, it is completely impossible to merge the old, which is why it can mix with the new one.

Depressurization of the cooling system

The reason for the appearance of the foam in this case becomes mixing the oil and antifreeze. In most cases, this is due to the defects of the gasket located under the lid of the cylinder block. Antifreeze can be mixed with engine oil in the case of defects in detail. The cracks in them are formed due to the fatigue of the metal or long exposure to high temperatures.

Antifreeze leak is simply diagnosed: it is sufficient to estimate the smoke from the exhaust pipe. For this, the motor runs in idle mode 10-15 minutes, after which the exhaust pipe is covered with a white sheet of paper. The sheet is thoroughly dried and is checked for gasoline or oil stains. It is possible to talk about violations of sealing in case of dry paper there are no traces. You can only resolve this by contacting the service center, because it is almost impossible to find the leakage of antifreeze.

Different motor oils

Foaming is characteristic of mixing two oils, differing in composition and properties. Mostly the reason for this becomes mixing synthetic and mineral oil. This happens due to the difference in the structure of two types lubricating fluids: in your properties mineral oils A synthetic is inferior, which are formed as a result of catalytic synthesis reactions and the koi structure includes one size molecules located on one distance from each other. Mix two different species Lubricants lead to the formation of a precipitate, which, circulating in the engine, forms air bubbles. The foaming is eliminated by the only way - using the engine oil of the same type and preferably one brand.

Condensate

When entering the engine or its parts, the latter is mixed with oil, forming an oil emulsion. It does not have a negative impact and is not the cause of faults, but speaks of low-quality oil. Most often, the emulsion is formed in the winter season: a poorly heated car leads to the sedimentation of condensate on the engine. Eliminate moisture formation is simple: you need to carefully warm the car before each trip in the cold season.

Change of consistency

Thunderstanding of motor oil is the most dangerous problem. Consistency lubricant May be like a condensedume, solidol or even plasticine, the latter lead to negative consequences for the car:

• The engine of the car is poorly started, ceases to respond to pressing the accelerator pedal. At the same time on dashboard constantly burning pressure indicator;
• Motor connecting rods can break away from the pistons and break through the wall of the cylinder block, which displays the entire engine.

The exact causes of changes in oil consistency were not identified, however there are several main assumptions:

• Mixing engine oil with water or coolant, which leads to a shell effect. He named so because experts of this company found in the 40s the presence of traces of antifreeze and water in the thickened oil. It should be immediately noted that it is not all oils to change the consistency, even in similar conditions, however, the presence of water and antifreeze in the composition is possible cause thickening lubricant;
• Low-quality fuel. According to the theory, the combustion products of such gasoline can be mixed with oil, entering into a reaction with additives, which causes thickening. It is worth noting that this reason - One of the most dubious and is still in question. The poor-quality fuel is unlikely to effectively affect the oil: it falls into the crankcase in the minimum quantities and is there shortly, since the temperature of the gasoline evaporation is lower than the oil. In addition, mixing fuel and oil leads to a decrease in the viscosity of the latter, and not to its increase. In addition, the change in lubricant consistency displays and diesel engines;
• Human factor. A frequent reason associated with a filling of low quality lubrication or composition that has nothing to do with oil.

Why the viscosity is reduced and how fast to cope with it

Motor oil not only thick, but also loses its viscosity. There may be several reasons for this:

• Thermal cracking. During this process, the fraction and lubrication components decompose into the components, which is reduced by the viscosity of the composition. The main thing - their boiling point becomes lower, respectively, they are practically not ignited and faster evaporates;
• Lubricant contamination by substances that enter the engine with fuel;
• Mixing lubricant with solvent special substances that are used to clean the power unit before changing the oil. Fully merged such compositions is impossible;
• Mixing oils with different viscosity. To this may be the fill of the new lubricant: not completely merging the old one can adversely affect the new, even corporate, fluid.

Eliminate all these phenomena in one way: replacing engine oil. Independently do it is not quite simple, especially if required full cleaning all system. The easiest way to spend the whole procedure in the car service, where the car will be raised on special equipment, the system is promoted and the new oil will fill, the viscosity of which will be tested immediately after repair work.

What to do if the oil on the consistency resembles solidol

The most terrible engine is excessive thickening of engine oil. If in its consistency it resembles solidol, then this is the reason for the immediate appeal to the auto center.

Wood thickening to such an extent can occur for various reasons:

• Polymerization. Under the influence of high temperature, the components and components of lubricants begin to be glued together;
• Oxidation of oil that reaches the air;
• Long-term use of lubricant without its regular replacement can lead to accumulation in its composition of a large amount of soot and oxides;
• Education water emulsionsleading to the overall oil.

How to eliminate and prevent thickening of lubricant liquid

• Regularly check operating temperature engine;
• Check the combustion efficiency of fuel;
• Do not allow water and toosol oil
• Use only high-quality original compounds recommended by car dealer.

If the oil consistency has ever changed, then you need to immediately contact the car service.

Changing the color and consistency of the engine oil can be a source of problems. Many of them are eliminated by their own, to get rid of others will have to contact the car service. Avoid gasoline faults or diesel engine You can, if you use only high-quality branded engine oil and comply with the recommendations of the car manufacturer.

"Oils with a class of viscosity 5W-30 are too liquid - for normal protection of the engine from wear, you need to use a minimum of 5W-40!" There is such an opinion, right? We decided to check it in practice, having experienced two Castrol oils along the Liffback Resource Test Skoda Rapid with a gasoline turbo engine Sakha (1.4 l, 122 hp). The first is the conveyor fill, with the class of viscosity 5W-30. And the second is "dealership", Magnatec Professional OE 5W-40.

And to nasalize low-temperature properties of oils - that is, those that are encrypted in the first number of the viscosity class on SAE (followed by the letter W, Winter, in Russian "Winter"), - we will not become this time. But we'll talk about high-temperature viscosity. These are the two last digits in the class of viscosity - and what they are more, the higher the viscosity at 100 ° C.

Why is it so important to protect the engine? Because as it warm up it, the temperature of the engine oil is growing, reaching 110-120 ° C, and it becomes more fluid. At the same time, the oil film becomes thinner - and, accordingly, its ability is reduced to prevent the so-called dry friction when the metal rubs about the metal.

Check?

Our test cycle on a "resource" turbo-Škoda for oils with different viscosity was identical: long-term movement on maximum speed, hundreds of accelerations-braking, riding on the Mountain Road of the landfill and "rest" on the cobblestone pavement and primer. Total 12000 km - the interservice interval in resource tests we cut by 20%. In addition to the selection of primary and end trials, we also made additional analyzes at equal intervals.

Kinematic viscosity at 40 ° C and 100 ° С Our samples in the Laboratory of MIC GSM were measured by an automatic multikipillary viscometer Herzog HVM 472

The first in the offset was the oil of 5W-30 conveyor fill, which now supplies Castrol for Kaluga Rapid and Polo. For the hosting of parts in a completely new motor did not confuse us, we took the oil sample after a run of 1500 km - and evaluated the increase in the content of wear products only relative to it.

After 12 thousand km instead of the "factory" oil, Magnatec Professional OE 5W-40 was filled - and the cycle was repeated.

Results?

First Surprise: The relative concentration of iron, aluminum and copper for 10,500 km of run in both oils increased almost the same way! That is, in fact, the wear of the Volkswagenovsky Turbomotor when moving on lubrication with the "fortieth" class of high-temperature viscosity has not decreased.

Why? Obviously, the case in the composition of kastral oils: anti-wear additives in combination with the base base effectively work even with class 30.

But the flow rate has changed - in full accordance with the theory: the oil, the more it enters the cylinders through the gaps between the details. The first 850 ml of the "conveyor" oil 5W-30 (it is so much "Motors" is needed for the top of MIN risks to Max on the probe Skoda) Rapid "drank" for 7000 km. It took the next portion much less than 5,000 km. Total - 1.7 liters for 12000 km.

Oil 5W-40 litto a more modest pace: the top of 850 ml took only 10,000 km after 10,000 km, at a mark of 22120 km. And the total consumption for the avgar for the interservice mileage was exactly a liter. In other words, thick butter flies much less in exhaust pipe. This made it possible to save 0.7 l, which at the current price of "synthetics" from 500 to 1400 rubles per liter helped us to save 350-980 rubles for 12,000 km.

In the era of the former deficit of combat cry, like "oil give!" Instantly worked: the cherished banks were painted with a bang. And what's inside - summer, winter, all-season - yes what difference? Choose - nothing to think - there is no need. This is today the consumer suffers from the need to make a choice ...

In general, the task seems contrived of what the manufacturer recommends and is written in the service book. And if the car is released in the last century? Or just want to try something "super"? And finally, the most topical ...

Synthetic or mineral water?

Let's try to figure out. Opinions are different, right up to this: "For the" Volga "synthetics - too liquid, leaks all."

Any oil is a mixture of a certain base called base oil, and a package of additives, thanks to which the specified oil properties are formed - viscous, anti-wear, anti-plating, antioxidant, detergents, etc. So, it is the type of base oil and determines what happens in the end - Mineral water, full synthetics or partial, in the surprise called semi-synthetic.

Mineral base oil is residual oil distillation products - what remains of the initial raw materials after gasoline has been obtained and diesel fuel. In essence, these are the same combinations. hydrocarbon compounds, only heavy fractions, and quite often with a high content of sulfur. To achieve a stable composition of such oil from the party to the party is very difficult - and oil can be different, and the features of the technology affect. And this is bad: the viscosity is unpredictable and have to go into the course of special thickening additives. The amount of them each time is selected individually, according to the results of the input control of the base oil.

Additives - Achilles Fifth Minequer, because under the influence of high temperatures, they are quite quickly "work" - the oil begins to change the properties. This is especially unpleasant for fairly served engines. It is not by chance that some manufacturers firm secretly recommend replacing mineral oil after 5-6 thousand km of mileage.

Synthetic base oil, on the contrary, "collected" from the necessary types of hydrocarbons. In nature, this combination may not even exist, but there is nothing accidental in this product - its stability is high, and the properties are predicted. At the same time, thickening additives are either not needed at all, or they are required significantly less.

In addition to the synthetics of hydrocarbon there is still polyglycolic, as well as halo carbon. However, it is exotic, and the main place in the market belongs to those whose oils on the hydrocarbon synthetic base.

The semi-synthetic base oil is a mixture of a conventional base of mineral oil with synthetic: with the percentage of the latter - usually 20-30, not more. This is enough to "pull up" some properties weak mineral water. Such oil occupies an intermediate position between the mineral water and synthetics - a sort of "synthetic for a poor."

How real is the type of oil affects the stability of its parameters, can give a simple experiment. We take two oils of one Russian company - mineral water and 5W40 synthetics and alternately check on the same engine for 50 hours. If you recalculate on mileage, it will turn out somewhere 4000 km. In the course of the tests every 5 hours, we select samples and measure viscosity parameters at different temperatures. The result is in the picture.

At the mineral water, the viscosity at first, as a rule, significantly decreases - the destruction of thickening additives is being destroyed, but from some moment it begins to grow: the accumulation of decomposition products in oil is affected. But the plot of stable viscosity is practically no! To a certain extent, this, by the way, take into account the requirements of SAE: according to them, the viscosity variation is allowed for such oils at 100 ° C from 12.5 to 16 UTS (Santistoks - a unit of measurement of viscosity), but its oscillations are stacked in the measurement error limit.

What is written on the bank

The main indicator for any oil is its viscosity, which is characterized by numbers on banks. We classify the viscosity or on the American standard SAE, or in our guest. We - everything is clear: if on the bank, let's say, costs 5z14, this means that there are all-season oil in it, two digits say about the same. The second is a viscosity at 100 ° C in centistoxes (CST), more precisely - the range of its change. According to GOST for this oil, viscosity can vary from 12.5 to 14.5 CST. But the first digit gives limitation of viscosity at -18 ° C, providing engine launch in winter. The letter "s" shows that the oil is thickened by viscous additives.

SAE is much more difficult. There, all-season oil also have two digits separated by the letter W. But they denote the temperature range of oil applicability and its viscosity at 100 ° C. For example, 10W40 means that it can be used at a temperature not lower than -20 ° C, and at 100 ° C its viscosity should be 12.5-16.3 CR. 0W40 means running from -30 ° C, 15W40 - from -10 ° C. So that sAE classification Last winter in general, in Russia could not ride anything! How wrong! It's good that not everyone is familiar with SAE ...

The most interesting thing is for synthetics, and for mineral water, the classification of viscosity is the same! The same numbers on the bank, which was discussed, completely independent of the composition of the oil! And this is correct - the engine of the chemical formula of the oil does not distinguish, it is necessary to submit the desired viscosity.

Hot and cold ...

But that's not all. The engine works, one can say, in an unimaginable temperature range, and the viscosity with the temperature changes, and even how! The same oil of 10W40 at 100 ° C may have a viscosity of 14 WST, and at -18 ° C - already about 3,500 cst, that is, more than 200 times! In general, the threshold of turning crankshaft There is a viscosity of about 5,000 WST and not at all that "the shaft in the oil is freezing." With this temperature, the remaining oil remaining in the system, "duby", and neither the oil pump or the shaft itself can no longer turn.

Since the dependence of viscosity on temperature is inevitable, I would very much like to have a smaller viscosity at low temperatures, and at high - more, but in moderation. The ratio of viscosity here is set by two parameters - the temperature coefficient and the viscosity index. The first is the ratio of the difference in viscosity at 0 and 100 ° C to viscosity at 50 ° C. What he is less - the better. For all-season minerals, it is within 5-8, and for synthetic - 4-6.

The second parameter is determined by comparison of the characteristics of the test oil with two references. For one viscosity index is taken equal to 100, for the other - 0. The higher the index, the smaller the viscosity at low temperatures! So, at the best minerals, this index is not rising above 110-115, and for a synthetic it can reach 150! That is why the engine on the synthetic in winter is easier. By the way, anywhere on the banks, the viscosity index is not specified - it can be found only in that or other documents for specific oil, but to remember the difference of these parameters, and therefore, it is necessary for the properties at low temperatures!

It turns out, synthetics is really "juicy", but only in the cold.

Horror stories finally

Whatever oil you prefer, the main criterion of choice should be the recommendations of the engine manufacturer, and according to a particular brand. Especially if we are talking about synthetics: it is still young and not deprived of some growth diseases. Those who neglect this can expect promised horror stories: examples - in the photo. The same motor just "chased" on two different oils - The results of oh what are different ...

So read the instructions! And only then make a choice.

You decided to check the oil level in the car's engine, raised the hood cover, took the dipstick ... and suddenly they saw that it was darkened, thickened or covered with foam. What does it mean? What problems threaten the change of color and the structure of the substance? Is it possible to continue to use the car or better immediately go to the car service?

What happens to the engine oil

The darkening of the substance can be observed after several hundred mileage kilometers. This is associated with low quality gasoline, fast ride, operation of cars in sophisticated conditions. Poor fuel is consumed too quickly, leaving behind a large amount of soot and others not to the end of burnt particles. All this is settled in oil and worsens its properties. The problem is particularly often around the drivers who use natural substance - the synthetics "flutters" much slower.

Is it possible to ride in a car with darkened or thickened oil? Yes. Moreover, if it remained light after several thousand kilometers of the mileage, it must be replaced - this means that the substance does not catch the soot, but sends it to the engine.

If the oil is black, it does not mean that it must be changed immediately. Replacement intervals are indicated in the accompanying documents. Follow the recommendations of the manufacturers, but do not forget about the individual features of the operation of the car - for example, if the machine often drives with a large overload, the interval will have to shorten.

It is interesting. Many drivers believe that if when buying several cans of oil from one batch of substances in different containers, there are different color and smell, the substance is spoiled. This is not true. The value has only how effectively the oil is lubricating, and you can not pay attention to the color differences.

Causes of darkening, why black

1. Pindy fuel leaving trash after combustion.
2. Low-quality oil with a bad base and a small number of additives. Under the influence of air it is oxidized and darkest.
3. The effect of remnants of old oil. It is impossible to completely remove the old substance from the engine - its number can be up to 1/6 volume. If it was dark, the new substance is also painted.
4. The velocity of the oil depends on its composition and the status of the engine, as well as on how accurate exactly the substance replacement intervals. If it is too rare to change it, the sediments will be gathered on the metal elements of the engine, which will contaminate the freshly tangible substance.

So it looks like a change in the color of engine oil

What threatens blackening

Butter darkens? It means that it works and protects the power unit from deposits. All you need to do is follow the replacement intervals recommended by the manufacturer.

Foaming substance in the engine

Foaming oil is a much more unpleasant phenomenon. Why a foam occurs:

• Depressurization of the cooling system. As a result of wear or mechanical damage, the coolant is mixed with engine oil and leads to the appearance of foam.
• "Conflict of oils." It occurs if you change mineral oils on synthetic and vice versa. Since it is impossible to completely get rid of the old substance, a mixture is formed with different levels of density. Under the influence of high temperature, it starts foaming.
• The appearance of condensate. It occurs if it is bad to warm the engine in the cold time, or with too rarely the use of the vehicle, its non-sufficient work.

The occurrence of foam in engine oil

How to deal with it? It is necessary to determine the cause and act depending on it:

• if there are suspicion of depressurization, contact the service center for diagnostics and repair;
• with the "Conflict of Oils", get rid of the resulting mixture and in the future use only one type of substance;
• if the reason is in condensate, warm the motor before each trip - so you get rid of moisture at its parts.

Crashing Substance

Motor oils are designed for operation at a certain temperature, which is usually indicated on the package. In a strong frost, minerals lose their properties, thick and deprived the main properties - free circulation and the possibility of pumping the pump. The result is a decrease in the amount of lubricant on the main components of the power unit. It is threatening fast wear and breakdowns.

How to cope with it? The only option is to use special oil, designed for operation in conditions of reduced temperature. Best results You can achieve using synthetic agents.

Reducing viscosity, consequences and ways to solve the problem

Viscosity is the ability of the substance to resist the flow. The indicator directly depends on temperature. What it is higher, the lower viscosity. In addition, the characteristic may decrease and for other reasons.

Decreased viscosity depending on temperature

1. Thermal cracking, i.e. the destruction of the components of the substance into small particles. It occurs under the influence of high temperature.
2. Lack of stability to shift forces. Additives are added to the oil, which improves properties, but reduce the resistance to the shear forces. When mechanically exposeds, the substance is destroyed and loses viscosity.
3. Pollution. It occurs when mixing lubricating components with fuel. If you do not pay attention to it, the oil film will swell and will not be able to protect the metal parts from friction.
4. The presence of solvents in oil. They fall into the substance during the washing of the engine or when using a bad fuel. The refrigerant from the damaged cooling system has similar properties.

What threatens liquid engine oil engine operation

First of all, the rapid wear of the details. Elements of the power unit are stronger than one another, which leads to an increase in the allocated heat volumes. Many heat - faster oxidation. The result becomes gradual destruction of a gasoline or diesel engine.

How to fix

With a low viscosity indicator, check the car for the following faults:

• nutrition problems;
• too high temperature in the engine;
• excessive contamination of the lubricant substance.

To thicken liquid, when solving, you need to proceed from the identified problems.

What to do if it thickened and became like solidol

One of the worst phenomena for engine oil is excessive thickening. Did you reset the diploma, and he is all black and it does not flow oil, it is thick, it looks like a contestation on a condensedum, solidol or even plasticine? If you do not consider the problem seriously, the engine will start working "on dry", which will damage the pistons, connecting rods and valves.

If the oil has become like solidol, contact the specialists immediately

This phenomenon has many reasons.

The most frequent dispute among motorists is how oil pouring and how often it is changed. There are many types of oil-mineral water, synthetics, semi-synthetic, depending on the basis and many more differences depending on the viscosity and additives set. Some drivers change more often, others less often, someone adheres to the recommendations of automakers Long Life and changes the oil in the engine once every 15-30 thousand kilometers.

Auto mechanics also did not come to the general opinion and give their recommendations. It is more profitable for them to change the oil more often, they do not badly earn.

What is happening with oil during long-term operation?

In the oil there is a definite base, it is based on the base, mineral water or synthetics. The semi-synthetic is a mixture of mineral water with synthetics. Synthetic oil Also much varies with each other.

In this base oil, the plant is introduced a set of additives, to the word to say, additives produce only two factory in the world, and the oil is released almost in any country.

Additives There are antifriction, washing, thickening and others. With a certain run, these additives come into disrepair, most often due to the low quality of fuel, the remains of which are washed off with oil from the walls of the cylinders. For large runs Additives are simply produced by entering into interaction with the environment (the longest thing that falls into the engine) or simply burn out. As a result, oil on large runs behaves not as it should:

• the thickening additive is washed- Butter becomes liquid like water.
• the washing additive is produced (It is consumed to laundering the fuel deposit) - all dirt accumulates in the engine: in oil canals, pump, pallet and head. If earlier the entire Nagar dissolved, now it starts to simply move along with the oil.

What good from this can happen? First, the oil will become liquid like a tear, of course the oil pump will create a smaller pressure, possibly light bulb on the tidy, but this is just the beginning.

Question: If this is oil, then what then in the engine lubrication system? And there is empty ...

Next to such a fluid oil constantly falls in the Nagar (he washed there, which is why there is a work of black color, but now there is no additive, and the nagar does not dissolve), the fluid oil will distribute this nagar along the entire lubrication system: through all channels up under the valve cover and Next down. These all sediments diverge and remain in the most hard-to-reach places, then it absorbs the remnants of that liquor oil and gets alone in separate places. Then this albeit also baked under the action of high temperatures.

At the same time, the engine continues to walk then liquid oilwhich has already become less (besides Ugona, part turned into a Zhipie and skew on the walls), and as combustion products fall into oil, oil thickens. As a result, Zhiy eventually appears everywhere.

What will happen to the engine

Lack of oil, drop pressure- in general, nothing good.

When is all alien (Gutalin? What oil turns there? This is not even solidol) is assembled under the valve lid and on the walls of the channels, the oil level in the pallet decreases, per liter-half. Drivers we have lazy, often under the hood do not look, do not check the level. And then at one fine moment, once and work on dry, because the pump is nowhere to cry out, the level fell below the laid. And this is the loop of the liners and crankshaft in less than a minute. And if the engine works for more than a minute without oil, then one foil will remain from the liner.

Yes, some machines are equipped with oil level sensors, but not everything is true?

Why do the manufacturers do that?

Where did it come from all the marginal replacement intervals, less viscous oil? The fact is that there are some environmental norms that are constantly tightened. Precisely because of them increase oil replacement intervals to not harm environment The development, and the testing of the engine oil goes into recycling, it is added in the manufacture of new oil in the same Germany, whose oils are considered almost an ideal. And in general, in the EU, only the British and the Dutch are not used in the production of new oils.

So you have to invent new eco-friendly engines and oil with a large interval from replacement to replace.

What do official car services hide?

And car service is a separate topic. For them, the situation is ideal when the car ends the warranty, and the next day all the main nodes break the client to pay in full. Are you sure that you were replaced by oil? Is not a fact. They may simply add, and it will not be the worst option. Sometimes such masters come across that they can pour through the barrel, and the new canister will be sold to the left. Well, what, the engine with such a service will be laid accurate to 100,000 mileage.

Instead of conclusions

Since additives produce only two plants, and basic oils Sold at market prices, the price of oil different manufacturers Must be more or less equal, depending on the quality. There is no such thing to sell cheap oil with an expensive set of additives. At the same time, in expensive oil should not be cheap additives, as this is the market, and there is a competition. If you take two identical oil to admit and viscosity, but with different price, most likely they have a completely different composition of additives: in cheaper oil they will work out after 5,000 km of run, and expensive will work at 10,000 during mileage.

• cheap oil, LUKOIL - 5,000 km
• expensive oil, type Castrol, Mobil, Liqui Moly - up to 10,000
• Motul must serve forever