Mineral motor oil is not very popular on the modern market; many motorists prefer synthetics or semi-synthetics. However, most buyers do not know that some famous brands sold under the synthetic brand, a processed mineral mixture.

Mineral motor oils are a product of the processing of petroleum hydrocarbons. Their structure consists of molecules that are heterogeneous in shape and structure - this leads to instability of characteristics motor fluid at different temperature conditions.

Mineral water as opposed to synthetic and semi-synthetic lubricants It is of natural origin and natural additives are used for its production. Manufacturers of motor oils improve the structure of mineral mixtures using two methods:

1. Removing impurities of harmful resins, acids, and sulfur compounds from liquids. This method makes it possible to obtain an oil base without harmful substances, but the viscosity of the mixture at high and low temperatures will change.
2. More effective method The processing of mineral liquids is considered to be hydrocracking technology. Thanks to it, harmful substances are not only removed from the base, but also the length of hydrocarbon chains changes. Thus, hydrocracking technology makes it possible to obtain products with stable viscosity characteristics to temperature changes. Hydrocracking oil will retain its properties better throughout the entire operational period (than pure mineral oil); it will practically not differ from synthetic mixtures.

Synthetic lubricants are produced using the synthesis of hydrocarbon compounds; their cost is much more expensive than hydrocracking products. If you are trying to purchase a fully synthetic motor oil, and not a product of processing a mineral base, synthetics have a different designation in the classifications, and also pay attention: the inscription on the canister “Full-synthetic” means fully synthetic.

Advantages and Disadvantages

The main and most important difference between mineral motor oil and synthetic or semi-synthetic oil is the stability of the mixture to different temperature conditions of the power unit. In winter, mineral water at very low temperatures ah begins to crystallize and cannot ensure normal pumping of fluid through the lubrication system, as well as starting the drive without warming up. In summer, this engine oil thins out at high temperatures outside the car and cannot form a stable protective oil film on the engine elements.

Unlike other base stocks, mineral fluids do not contain the additives necessary for the normal operation of most modern engines.

Synthetics and semi-synthetics differ from mineral water in the following characteristics:

1. Fluidity. Mineral water is too thick for use in modern engines.
2. Molecular structure. Heterogeneity molecular structure mineral mixtures leads to a decrease in their resistance to crystallization and liquefaction.
3. Additives. The additives in synthetics and semi-synthetics are better; they do not break down at high temperatures outside the car. In contrast, mineral water uses additives of natural origin that burn out at high temperatures.
4. The difference is in replacement times; synthetics change much less frequently.
5. Mineral water forms more deposits while the engine is running.

Among the advantages of mineral motor oil are:

1. These fluids work better in engines with high mileage. Unlike synthetics, which have great cleaning properties, mineral mixtures do not lead to separation of carbon deposits from drive units and do not cause clogging of the lubrication system and engine channels. Mineral water washes away carbon deposits from the internal elements of the engine gradually.
2. Mineral water, unlike synthetics and semi-synthetics, interacts less aggressively with the rubber surfaces of the lubrication system and drive units and does not lead to their destruction.
3. Improves the performance of worn power units. Mineral oils are quite thick, they are able to fill large gaps in friction units of engines with high mileage.

Conclusion

Mineral motor oils are inferior in viscosity characteristics to synthetic and semi-synthetic fluids. But there is power units, in which only the use of mineral water is possible, for example, only mineral oil has been poured into the engine for several years or the drive has a significant leak. In such situations, the use of synthetics or semi-synthetics is unacceptable due to the large amount of carbon deposits inside the engine.

When choosing mineral oil, take into account the requirements of the car manufacturer, the type of engine, and the base mixture that was previously poured into the engine.

When choosing engine lubricant for your favorite car, most car enthusiasts have to make a choice. What will be better for the car: mineral or synthetic oil? Let's help many car enthusiasts select the most effective lubricant product.

Why were synthetic lubricants created?

Even from the name you can understand that mineral products are something natural. These oils are obtained directly from petroleum. Synthetic products are special substances that are made by synthesis from some raw material. What is needed to undergo synthesis and why did specialists create these lubricants?

For work in unstable conditions

Car engines operate in unstable conditions. The engine heats up after starting, after stopping it cools down. Modes internal combustion engine operation are also constantly changing.

To ensure reliable operation of engines under these conditions, it was decided to develop such a composition so that the properties and characteristics of the oil do not change and are stable regardless of the conditions. But this is practically impossible. After all, any liquid will become thicker after it hardens. If the friction speed increases, the lubricant will overheat.

That is why, when the automotive industry began to develop rapidly, the question was raised about creating a lubricating fluid that would have more stable properties. Since the mineral base in mineral products is somewhat limited in creating stability, specialists were able to obtain a special base by synthesizing some molecules. It differed from mineral oils in its greater independence from external factors. This is how synthetic oil appeared.

For lubricating aircraft engines

For the first time after its invention, this type of oil began to be used in aircraft engines. Standard mineral oil “refused” to work in extreme conditions at very low temperatures. It just froze.

Synthetic oil then had a fairly high cost and was not available to motorists. As time passed and technology developed, these products became cheaper. Today these lubricants are used in automobile engines.

What to choose?

Synthetics differ from their mineral “brother” by having more stable properties and characteristics even when operating under extreme conditions and temperatures. How can this be applied to a car? What advantages does synthetic oil have for the car enthusiast?

Firstly, synthetics work reliably at extremely low or high temperatures. Secondly, these oils are able to retain their characteristics and performance properties longer. And for some car models, mineral substances are simply prohibited, because compositions based on mineral components do not have the necessary properties that are relevant for modern engines.

The main advantages of synthetic oil

High-quality oils have higher fluidity characteristics. This allows you to minimize friction between engine parts. As a result, fuel consumption can be reduced and traction can be increased.

As already mentioned, these oils perform well even in severe frost and overheating. The internal combustion engine will not feel overload. Synthetics often retain their chemical stability much longer, since oxidation processes practically do not occur in them.

Synthetics are a clean motor.

When lubricant circulates in the lubrication system, sediment remains. If mineral-based oils are used, serious sludge deposits may form in the engine after some time of use. This significantly reduces the efficiency of the internal combustion engine and leads to increased wear.

Synthetic engine oil, unlike mineral products, does not contain impurities and effectively protects against sludge deposits. This is serious and maximum protection.

Protects against wear

Engine components constantly work in close contact with other parts or assemblies. This may cause wear or serious damage. To reduce the wear rate of parts, it works between them lubricating fluid. Mineral oils quickly lose their properties and lubricating effect. Synthetics retain their properties for a long time, and their lubricating characteristics are much higher.

What to “feed” the transmission?

It’s probably unpleasant to see mountains of “dead” gearboxes at some service station, and the make of the car from which the transmission was removed doesn’t even matter. Modern manufacturers are trying to make this unit disposable. Modern boxes cannot be repaired. They are simply changed. Do you know how much it costs to replace a box? That is why it is important to constantly pamper your gearbox with good lubricants. Synthetic gear oil is best suited for this. It is better to choose viscosity 75W, and the quality class should be at least GL-4. Such products are perfect for manual transmissions.

It’s just a pity that domestic manufacturers do not produce synthetics for transmissions. Everything that is offered in auto stores is imported products from Europe. Prices start from 350 rub. per liter up to 775 rub.

Tests have been carried out different oils. This is how a certain rating turned out. During the inspections, lubricants were tested for certain characteristics, such as operation in extreme conditions, stability of properties, and the ability to quickly warm up.

Motul Gear 300 was named the best among the best. It is this product that provides maximum protection for the gearbox under maximum load. Two types of oils best protect against wear. These are transmission oils from Energear and ADDINOL products. In the energy saving rating are the Gear line from Motul and Mobil. In third place is ADDINOL. For those cars that sit in the cold all night, SRS products, the Shell Spirax and Energear line, are best suited. The best price/quality ratio is found in NGN oils.

And the winner in this test was the company that provides maximum protection even in sports conditions. This is the Motul company.

Choosing the best synthetic engine oil

Available in stores large selection various lubricant products. What to choose for those who need synthetics? There is a rating that is compiled based on the characteristics of lubricant products from different manufacturers.

Research specialists from the Russian laboratory are true professionals. You should trust the results of this test. During it, experts tested some types of synthetic oils.

Zic QX

This product can be called quite high quality. Oils can be used both in severe frosts and in the summer heat. The lubricant can also work on gasoline engine, and on diesel. Based on the results of testing the characteristics, this liquid fully complies with the standards of the class in which it is presented.

In addition, the composition has better stability and acidity indicators. Car enthusiasts write in reviews about this oil that they have no complaints about it. Recommended mostly for those who use the machine in cold regions. The product contains special modifiers that reduce wear of parts. This synthetic has minimal consumption. The quality/price ratio is good.

Mobile Sint S

Liquids from this manufacturer are known to all car enthusiasts without exception. The series of oils works perfectly on both diesel and gasoline engines. The product fully complies with the standards. A special polymer-based thickener that works great. It is designed to reduce oil wear.

A.G.A.

This is a domestic manufacturer. According to experts, the liquid has good characteristics. It also needs to be said that this synthetic allows the engine to start perfectly “in the cold”.

But when high performance The lubricant ages quickly. Average mileage on this liquid is about 6000-8000 km, its price is 600 rubles.

Mannol Elite

This is a Belgian synthetic motor oil. Manufacturers claim that the liquid has maximum thermal-oxidative stability. This is a guarantee of long service life.

Overall, tests showed that this consumables suitable for use. One of the disadvantages is the slow response of polymers. Otherwise, this is a good liquid. Its cost is about 2 thousand rubles.

Shell Helix

According to the experts who conducted the tests, this manufacturer makes the best products. These lubricants have an excellent, long service life. It also needs to be said that universal lubricant has good level resistance to oxidative processes. This is perhaps the best synthetic oil. Reviews about it are only positive.

When advancing winter season special attention car owners pay attention to the engine of their car, which runs on mineral oil. This is explained quite simply. It is during the cold winter that motorists are faced with several important issues: increase in efficiency, compression ratio, engine starting.

When frost sets in, the mineral oil becomes thick, and the engine starter is completely forced to turn the engine crankshaft once.

However, when replacing mineral oil in the engine with high-quality synthetic oil, the situation radically changes, and positively - the engine starts the first time, and the battery charge is consumed very economically and lasts longer.

Therefore, car enthusiasts are faced with the problem of how to correctly switch the engine to semi-synthetic or synthetic oil. At the same time, some naively believe that this is elementary: you just need to drain the mineral oil and fill it in instead semi-synthetic oil, which, based on its name, is something between synthetic oil and mineral oil. But what is the correct way to convert a car from mineral oil to synthetic oil?

Mineral oil

This is far from being as easy as it seems at first. If a car engine has already run on mineral oil, then special oil layers are formed everywhere on the rotor-piston group, and the oil is “washed,” as it were. But synthetic oil works on exactly the opposite principle, i.e. synthetic oil does not form a layer, but on the contrary, it washes away all these deposits, and then the oil gushes out of all the gaskets and seals. To avoid this, you need to learn how to correctly switch from mineral oil to synthetic oil.

Switching to “synthetics”

The most important thing is to change the oil. Simply draining the mineral oil is not an option. You cannot pour out the old oil and immediately fill in new synthetic or even semi-synthetic. After draining, there will still be some old oil left in the engine oil channels, which, when mixed with new synthetic oil, can give an unexpected reaction: foam will appear that will block all oil channels in the engine. Then the engine will have to be rebuilt, and this is very expensive.

The oil needs to be changed according to the following scheme: first, the old mineral oil is drained and completely washed off, then a special car shampoo is poured in, designed specifically for the engine and specifically for washing - it will help remove the old mineral oil without any residue. Remember, this is very important. After all, if the oil remains in the engine, when “synthetic” is poured in, it may boil and stop working due to lack of lubrication. And even more significant and expensive can be a major engine overhaul. Then the shampoo is drained, and only after that new synthetic oil is added.

You can do it another way. To prevent an oil change from being such a surprise for your engine, first fill in very mineral oil instead of the old mineral oil. high quality and drive it from 500 to 1000 km, and only then change it to synthetic oil. This method is most often used by car owners and is more gentle for switching to “synthetics”.

Valve seals and oil seals

Oil seals and valve stem seals are also an important element when changing the oil.

First of all, pay attention to the oil seals and valve stem seals. If they are made from nitrite conventional rubber, which is exposed to synthetic oil, this will only mean one thing - the synthetic oil will make them soft, wash out and form holes from which expensive synthetic oil will ooze.

To avoid oil leaks under the hood, all old valve stem seals and oil seals must be replaced with new ones made of fluorine rubber or acrylic rubber. But if oil continues to guzzle from all gaskets and seals, check the gas pressure in the crankcase. At high pressure, install new oil seals and valve stem seals made of acrylic, which are mounted on the crankshaft and camshaft, will not help - high blood pressure will squeeze oil through the seals and pour out of all the cracks. It's threatening major repairs engine, and only then can you change the oil.

Synthetic oil has the ability to wash away everything. This must be taken into account when changing the oil. First of all, this concerns compression; the engine will become cleaner, as will the cylinder walls, so a slight gap will form. But this can be easily solved - the cylinder head is opened, new compression valves are installed oil scraper rings, which will help increase compression to the required level and significantly save expensive synthetic oil in the engine.

Questions and problems that arise when switching from mineral oil to synthetic oil

First, the condition of your engine is assessed.

1. Could there be an oil leak? If the answer is yes, then it is necessary to understand the reasons that cause these leaks and eliminate them, and only then switch to “synthetics”.

2. Are there deposits on the engine? If significant deposits occur in the oil system, flushing is necessary.

3. Is there any oil leakage where gaskets and seals are installed? If it leaks, it means that their seals have lost their elasticity and tightness. First you need to carry out general repairs engine, replace the oil seals and gaskets, and then change the mineral oil to synthetic oil.

If the condition of your engine does not give you one hundred percent confidence and causes anxiety and fear, then you first need to switch to semi-synthetic oil. You need to drive a certain number of kilometers on this oil before it is completely replaced. If no leaks are found when using semi-synthetic oil, the engine behaves perfectly, you can switch to “synthetics”.

Typically, the machine's operating instructions provide information about the requirements for using lubricants. Using this information, you can select the appropriate brand of “synthetic” for the engine.

Choosing “synthetics”

Choosing synthetic oil is a troublesome matter. There are some points to consider here. Pay special attention to abbreviations.

The most common synthetic oil in our country is 10W40. The number 10 at the beginning according to SAE standards means the thickening index. Accordingly, the lower this figure, the faster the engine will start in cold weather. For our climate, it is most acceptable to use synthetic oil with an index of 0-15. The second digit reflects when operating temperature engine at 100 degrees viscosity oil temperature. The figure increases in accordance with the increase in viscosity. The optimal oil viscosity for our country is from 40 to 60 units. And the letter W means “Winter” type oil.

We continue to publish articles from the “What happens if...” series. Today we will discuss what will happen if mineral oil is added to an engine that already has synthetic oil.

The debate about what will happen if you add mineral oil to synthetic engine oil and vice versa has been going on for years. Some say that such a “cocktail” can cause irreparable harm to the engine. Others argue that there should be no problems, emphasizing that the main thing is to use oil from the same manufacturer.

Let's figure out whether it is so harmful for the engine to mix mineral oil with synthetic oil.

What does an engine need oil for?

As experiments show, a motor without oil can work. But not for long, and after such “dry” operation the engine can be safely scrapped. The fact is that motor oil performs several important functions:

Protects friction surfaces from wear, jamming and other damage;

Reduces energy loss due to friction to a minimum;

Is a cleaning of the engine system;

Removes heat from friction surfaces;

Reduces noise and vibrations gear wheels, reduces shock loads.

In a word, it ensures long and uninterrupted operation of the car engine.

How does “mineral water” differ from “synthetics”?

Let's remember what is included in mineral and what is in synthetic motor oil.

Mineral oils are products of direct petroleum refining, which are characterized by instability of their characteristics and a high degree of volatility. To make such oils more efficient, a large number of stabilizing additives are added to them, which are prone to relatively rapid destruction. Because of this, it is recommended to change mineral oil to “fresh” oil as often as possible.

Synthetic oils are products obtained by synthesis, and their characteristics (viscosity, flash point and pour point, alkaline and acid numbers) can be set during production. The properties of such oils are stable, and their relatively high viscosity-temperature characteristics make it possible not to add a large amount of additives.

Thanks to these properties and a small amount of additives compared to mineral oil, synthetic oil lasts longer and needs to be changed less frequently than mineral oil. In addition, synthetic oil differs from mineral oil in higher thermal-oxidative stability, low volatility and a low tendency to form soot and deposits.

In addition to differences in the basic composition of mineral and synthetic oils, they differ in the amount and composition of additives added. These additives include:

Viscosity-thickening

Anti-wear

Antioxidant

Corrosion and rust inhibitors

Anti-foam

Friction modifiers

Depressant additives.

Mineral oils from different manufacturers will differ not only in their base composition, but also in the composition of the additives used in them. The same can be said about synthetic oils. The difference in the composition of additives is dictated by many reasons and often depends on the climate zone in which the car is operated. It is not in vain that we focused our attention on these chemical components of oils - after all, it depends on them whether the engine will run on a “cocktail” of mineral and synthetic oil.

The main harm comes from additives

If only mineral and synthetic oil bases were mixed, then, perhaps, much less damage would be caused to the engine than what is produced by the different chemical composition additives found in these oils. The fact is that not all additives contained in mineral oil dissolve in the synthetic base. Just as not all “synthetic” additives can dissolve in the mineral oil base. No one can predict what can happen in each individual case of mixing such oils. One thing is certain - the engine will suffer from such a “cocktail”. It’s bad, first of all, from the additive elements of the oil that was added, whether mineral or synthetic, precipitating into an insoluble precipitate.

This undissolved sediment can form a viscous mixture that will clog the oil receiver grids and oil channels, causing the engine to experience oil starvation.

Operating in this mode, even for a short period of time, can lead to failure of the unit. It must be remembered that oil of a certain composition (mineral or synthetic) forms chemically modified layers and adsorbed films on the rubbing surfaces of engine parts. When other additives are added, these layers are destroyed, and wear of parts increases, which also significantly harms the engine.

What to do if you do mix mineral oil with synthetic oil

First of all, don't panic. And try to get to the nearest service station as soon as possible, preferably in a gentle mode (without stress). Where they will diagnose your engine and determine whether you will need to flush the oil system, or you can get by with simply replacing the oil and oil filter.

P.S. To be fair, it is still possible to add mineral oil to synthetic oil and vice versa without causing serious damage to the engine. But only if you have added oil from the same manufacturer and are going to drive this “mixture” for a short time. Ideally - to the nearest service station. But even in this case, changing the oil and filter cannot be avoided.

Many car enthusiasts are constantly worried about the same question - how can they prolong the reliable and uninterrupted operation of their car’s engine. The key to answering this is correct selection And timely replacement quality motor oil is a task, the correct solution of which directly affects the life of the car.

How to make a weighted and right choice in a huge range of modern lubricants? How is mineral oil different from its synthetic “competitors”? Which lubricant is better and can different types be mixed with each other? And finally, how to choose a high-quality, but not too expensive product? We will try to answer all these questions in one article.

Species

Modern materials, which increase the wear resistance of car engine parts, are divided into three main categories - mineral, semi-synthetic and synthetic oils. Let's look at each type of lubricant in more detail.

Mineral

It is produced from a natural mineral - oil, through its distillation, distillation and subsequent refining. There are three main types of mineral oils, which differ in the composition of their hydrocarbons: paraffinic (most suitable for the manufacture of lubricants), naphthenic and aromatic. Sulfur, which is part of the feedstock, increases the oxidizing properties of the final product, so its content in high-quality lubricant should not exceed one percent.

Pure mineral motor oil very quickly loses the necessary properties, so a large number of various anti-corrosion, detergent and wear-resistance “additives” are added to its composition. The material is characterized by high viscosity, which allows it to be used in units that have a significant service life and “wear out” of the sealing elements.

Synthetic

This is a more modern type of lubricant for a car engine, obtained by synthesizing certain substances. There are several types of these products: hydrocarbon, polyester, silicone, polyglycol synthetic oils, as well as oils made on the basis of phosphoric acid esters. Quite complex chemical production requires significant capital investments, which is why the final product itself costs much more than its mineral counterpart.

Naturally, its high cost is compensated by some advantages, namely:

• decreased sensitivity to overheating;
• preservation operational properties in conditions of low temperatures;
• increased fluidity, reducing friction between parts;

Synthetic motor oil practically does not oxidize; it can be used under conditions of increased engine loads and various temperature conditions.

Semi-synthetic

This product contains mineral oils for the engine (or rather, their basic components), mixed with synthetic components in a ratio of 70 to 30. This lubricant is a kind of compromise between “mineral oil” and “synthetic” - it has quite good performance characteristics, and is not very expensive.

Characteristics of mineral and synthetic motor oil

Let's consider the main characteristics of lubricants for engines internal combustion, summarizing them into a simple and convenient table:

Now, having studied the necessary parameters, let’s try to answer in more detail the question of how mineral motor oil differs from synthetic and semi-synthetic.

How are they different?

Mineral water and synthetics

Already from the name itself it is clear that mineral lubricants are made from natural petroleum hydrocarbons, while synthetic ones are a product obtained as a result of chemical reactions. Why was there a need for a rather complex synthesis? It's all about the operating conditions of car engines - they are accompanied by a sharp change in speed, a difference in temperature conditions, a change in friction speed, and so on. Basic basis mineral engine oil cannot always ensure maximum stability of the internal combustion engine. The performance of synthetic lubricants is much better, since they are less susceptible to the influence of external factors.

Let's take a closer look at what is the difference between mineral oil and synthetic oil:

• origin: the basis of “mineral water” is created by nature itself, “synthetics” is the result of molecular synthesis;
• reaction to changes in the temperature conditions of the engine;
• preservation of basic characteristics during engine operation: “synthetic” retains its basic parameters much longer;
• fluidity: the high degree of viscosity of mineral motor oil does not allow its use in ultra-low temperatures;
• change in the stability of basic parameters at high temperatures: some “additives” in the composition of a mineral lubricant can simply burn out.

So, the main difference between “synthetics” and mineral motor oil is more high stability its characteristics and properties in different temperature conditions, as well as the operating life of the units.

Mineral water and semi-synthetics

Being a product obtained by mixing two bases, “semi-synthetic” has higher stability indicators compared to mineral motor oil, being somewhat inferior to synthetic. It is more often used in cars with significant mileage, which are operated at temperatures not lower than 20 º C.

Which oil is better

Now let's answer another important question - which oil should we choose, mineral or synthetic? It seems that synthetic lubricants have an undeniable advantage over their mineral “colleagues,” but let’s not forget that everything in our world is relative. The fact is that the use of “synthetics” is not always an urgent need. For example, we know that platinum conducts electric current better than copper, but this does not mean that the wiring in our apartment should be made of platinum elements. Copper wires are quite sufficient for using household appliances.

In certain cases, the use of “synthetics” for engine lubrication is generally contraindicated - this mainly applies to units with high mileage. The sealing seals in them, as a rule, are very worn out and synthetic lubricant with high fluidity will not be able to ensure normal operation of the motor - it will quickly leak out or evaporate. If your car is released domestic manufacturer and has a significant service life, do not hesitate - feel free to purchase Russian mineral oils "LUKOIL", "AZMOL" or "TNK" - the quality of these products can provide reliable engine protection.

The advantage of mineral motor oil is also its ability to gradually “wash off” deposits on the internal combustion engine elements, while fluid “synthetics” simply “scrape off” them. In this case, oil lines and filters become clogged with large fractions of soot and soot. If you operate your car in a region where the temperature in winter does not drop below 20-25 º C, then there is no urgent need for the mandatory use of synthetic lubricant.

The main thing here is that all the main parameters of lubricants are suitable specifically for your engine. The only point is that mineral or semi-synthetic motor oil requires more frequent replacement. If this condition is correctly fulfilled, no harm will be caused to the engine from the use of “mineral water” and “semi-synthetics”.

Attention! The mineral motor oil in the engine must be replaced at least every 5-7 thousand km of the vehicle.

Is it possible to mix

At the end of our review, let's talk about whether it is possible to mix mineral and synthetic oil for internal combustion engines. This question usually arises when replacing the lubricant in the engine or emergency when you need to urgently top it up. What should we do if we don’t have the brand of motor oil we need at hand, and its level has dropped to a critical level? As always, we will listen to the advice of experts.

Most experts say that mixing different types of oils in your engine is a bad idea. They are sure that the formation of a “cocktail” from various additives contained in motor oils can lead to chemical reaction resulting in a mixture that does not meet any standards and requirements. However, the very fact of the existence of “semi-synthetics” proves to us that motor oils can still be mixed. Naturally, when performing these actions, you must comply necessary conditions:

Attention! When mixing motor lubricants, use products from the same manufacturer, and at the first opportunity, perform complete replacement oil and be sure to change the filter.

Video about mixing car oils:

So, we still managed to find out whether it is possible to mix synthetic, mineral and semi-synthetic oil without causing damage car engine. We have also proven that the use of expensive high-tech motor lubricants is not always justified. We think that we have touched on a rather important topic that worries many car owners and we hope to cover it in more detail in future articles.