Mineral engine oil. Is it possible to fill in "synthetics" after "mineral water"? Is it possible in mineral oil

When choosing a lubricant for the engine for a favorite car, most motorists have to make a choice. What is the best for the car: mineral oil or synthetic oil? Let's help many car enthusiasts find 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 kind of raw material. What is needed to undergo synthesis and why did the specialists create these lubricants?

For working in unstable conditions

Automotive motors operate in unstable conditions. The engine heats up after starting, after stopping it cools down. Modes ICE operation are also constantly changing.

For the reliable operation of the motors under these conditions, it was decided to develop such a composition so that the properties and characteristics of the oil did not change and were stable regardless of conditions. But this is almost impossible. After all, any liquid after it hardens will become thicker. If the friction rate increases, the lubricant will overheat.

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

For the lubrication of aircraft engines

For the first time after the invention, this type of oil was used in aircraft engines. Standard mineral oil"refused" to work in extreme modes at very low temperatures... It just froze.

At that time, synthetic oil had a rather high cost and was not available to motorists. Over time, with the development of technology, these products have become cheaper. And today these lubricants are used in automobile engines.

What should you choose?

Synthetics differs from its mineral "brother" in more stable properties and characteristics even in operation under extreme conditions and temperatures. How can this be applied to a car? What are the benefits of synthetic motor oil?

Firstly, synthetics work confidently at extremely low or high temperatures. Secondly, these oils are able to retain their characteristics longer and performance properties... 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

Quality oils have better flow characteristics. This minimizes the friction between the engine parts. The result is a reduction in fuel consumption and an increase in traction.

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 for much longer, since oxidative processes practically do not occur in it.

Synthetics are pure motor

When grease circulates in the lubrication system, a sludge remains. If mineral oils are used, serious sludge deposits can 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 a serious and maximum protection.

Protects against wear

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

How to "feed" the transmission?

Probably, it is unpleasant to see mountains of "dead" check points at some service station, and the brand of the car from which the box was removed is not even important. Modern manufacturers are trying to make this unit disposable. Modern boxes are not repaired. They just change. Do you know how much it costs to replace a box? That is why it is important to constantly pamper your checkpoint. good lubricants... Synthetic gear oil is best suited for this. It is better to choose a viscosity of 75W, and the quality class should be at least GL-4. These products are perfect for manual transmissions.

It is a pity that domestic manufacturers do not produce synthetics for transmissions. Everything that is offered in car dealerships is imported products from Europe. Prices start at 350 p. per liter up to 775 r.

Tests have been carried out different oils... This is how a certain rating came about. During the checks, the lubricants were tested for some characteristics, such as operation in extreme conditions, stability of properties, and the possibility of rapid heating.

Motul Gear 300 was named the best among the best. It is this product that protects the gearbox as much as possible at maximum load. Two types of oils provide the best protection against wear. These are gear oils from Energear and products from ADDINOL. In the energy saving rating, the Gear line from Motul and Mobil. In third place is ADDINOL. For those cars that stand all night in the cold, SRS products, the Shell Spirax and Energear line are best suited. The best price / quality ratio is in NGN oils.

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

Choosing the best synthetic engine oil

Stores presented big choice different lubricant products. What to choose for those who need synthetics? There is a rating that is compiled based on the characteristics of lubricating products from different manufacturers.

The research specialists from the Russian laboratory are real professionals. Trust the results of this test. In the course of it, experts tested some types of synthetic oils.

Zic QX

These products can be called quite high quality. The oils can be used both in severe frosts and in summer heat. The lubricant is capable of working on gasoline engine, and on diesel. Based on the results of performance testing, this fluid fully complies with the standards of the class in which it is presented.

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

Mobil sint s

Fluids from this manufacturer are known to all motorists, without exception. A series of oils works perfectly both on diesel engines and on gasoline units... The product fully complies with the standards. Special thickener based on polymers, works great. It is designed to reduce oil wear.

AGA

This is domestic manufacturer... According to experts, the liquid has good characteristics... I must also say that this synthetics allows the motor to run perfectly "on cold".

But with high performance, the grease ages quickly. The 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 the highest thermal-oxidative stability. This is a guarantee of long-term performance.

In general, tests have shown that this consumable suitable for use. One of the drawbacks is the slow response of the polymers. Otherwise, it 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 greases have excellent, long service life. It must also be said that universal grease has good level resistance to oxidative processes. This is perhaps the best synthetic oil. Reviews about him are only positive.

Mineral or synthetic - which of these motor oils is better and why? In general, many motorists are asking this question, but comparing these completely different lubricants is not very correct. In fact, these are two of the three main types of lubricants that are sold in all auto dealerships and car markets.

Of course, what kind of oil better synthetics or mineral, or maybe semi-synthetics - it is said in the owner's manual for a particular car. At the same time, you can pour any liquid into the lubrication system and the engine will start and work on it, but for how long? All engine oils fall into three categories:

• mineral;
• semi-synthetic;
• synthetic.

When choosing a lubricant, it is important to take into account the properties of the working fluid.

What to consider when choosing an oil?

To help you decide between mineral water and synthetics, we will consider the main characteristics that must be taken into account when choosing a lubricant composition. First of all, take into account the recommendations of the automaker, which indicates the oil suitable for the engine in the owner's manual. It denotes specifications lubricant composition for summer and winter seasons... Also, the manual always indicates what type of oil is needed - mineral water or synthetic?

When choosing an oil, experienced motorists always take into account the degree of engine wear and personal preferences for choosing a brand. Long-term operation of the motor on the same type of lubricant will affect its technical condition. For example, if the engine runs on a mineral fluid for a long time, traces of it will remain on the gaskets and in nooks. If you add synthetic oil, it will corrode the stubborn residues of mineral water and this will lead to through damage to the oil seals.

Be sure to listen to the opinion of auto mechanics whom you trust to maintain your car. Among experienced specialists, there is an opinion that only synthetics need to be poured into new motors - it tolerates high revs better when driving aggressively. As for mineral water, it is better suited for older engines. The only requirement is more frequent replacement lubricating composition.

If you want to choose a compromise - pay attention to semi-synthetic lubricants. They are made from mineral water by means of chemical hydrocracking. We recommend reading more in a separate article. This technology improves performance characteristics mineral composition. Semi-synthetics are always cheaper than synthetic oils, and for a motor that previously worked on mineral water, such a transition will only be a plus.

There are other motives for using this or that type of engine oil, but they are too subjective. For example, some motorists are categorically against mineral oils, especially the owners of Honda, Subaru and "Japanese" in general. Objective reasons they do not name, but refer to years of experience, but this is not an argument.

It is important to consider not the make of the car, but its technical condition and mileage. The operating conditions are also important. For example, under normal conditions, mineral oil can be changed every 8-10 thousand kilometers, and in harsh conditions this is done twice as often.

If the engine is turbocharged, the oil must also be changed more often. In this regard, it is better to fill in synthetic grease in such engines.

Characteristic differences between mineral and synthetic oils

• Synthetics thickens and hardens at lower ambient temperatures than mineral water.
• The properties of synthetic fluids are less sensitive to temperature extremes. This is especially true of additives responsible for viscosity.
• Synthetics fade less and hardly evaporate, so less slag and deposits form on the inner surfaces of engine parts.
• The service life of mineral water is less than that of synthetics, about half.
• Synthetic fluid provides better protection motor from wear.

There are many other advantages of synthetics over mineral oils, but in contrast to them, mineral water has a more affordable price. The difference can be fivefold, so there must be really good reasons for buying synthetics. These include the recommendations of the automaker. If you want to save money, choose a mineral lubricating fluid for the engine.

Subtleties of oil selection

The most important rule that you must take into account is never mix synthetic and mineral oils in the engine. In addition, after synthetics, you cannot immediately pour mineral water, but on the contrary, it is not prohibited to do it. To avoid problems when changing the oil type, flush the lubrication system with flushing fluid.

All petroleum products differ in quality and viscosity. There is an international SAE parameter, according to which greases are divided into 11 types of viscosity:

• six for winter operating conditions;
• five for the summer.

Universal lubricants are most common and are labeled with two indicators at once. For the winter, engine oil is chosen according to rule 35, according to which the winter viscosity index must be subtracted from the number 35, and you will find out the pour point of the liquid. You can also use special tables.

The quality of oils for car engines graded on the API scale, which was developed in America. On this scale, oils are classified according to the type of use:

• S indicates that the fluid is suitable for gasoline engines.
• C - confirms the applicability of the fluid with diesel units.
• S / C is a universal fluid suitable for diesel and gasoline engines.

The letter following this index indicates the category of fluid quality. The higher the letter alphabetically, the higher the quality of the liquid.

In order not to waste money, grease for used engines should be chosen in a class higher than the automaker recommends. This rule also true for machines operated in harsh conditions.

So we figured out which oil is better - synthetic or mineral oil, what characteristics differ between different fluids and which one to choose for a particular car engine.

Mineral motor oil for modern market not very popular, many motorists prefer synthetics or semi-synthetics. However, most buyers do not know that some famous brands sell under the brand name synthetics, a recycled mineral blend.

Mineral motor oils are a product of petroleum hydrocarbon refining. Their structure consists of molecules that are inhomogeneous in shape and structure - this leads to instability of characteristics motor fluid at various temperature conditions.

Mineral water, unlike synthetic and semi-synthetic lubricants, is of natural origin; natural additives are used for its manufacture. Engine oil manufacturers improve the structure of mineral mixtures in two ways:

1. Removal from liquid impurities of harmful resins, acids, sulfur compounds. 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 a hydrocracking technology. Thanks to her, from the basic basis, not only are they removed harmful substances, but the length of the hydrocarbon chains also changes. Thus, the hydrocracking technology makes it possible to obtain products with stable viscosity characteristics to temperature drops. Hydrocracking oil will retain its properties better throughout the entire operating period (than pure mineral oil), it will practically not differ from synthetic mixtures.

Synthetic lubricants are made by synthesis hydrocarbon compounds, their cost is much more expensive than hydrocracking products. If you are looking to purchase a fully synthetic car oil, and not a product of processing of a mineral base, synthetics are distinguished by their designation in the classifications, and also note: the inscription on the canister "Full-synthetic" is fully synthetic.

Advantages and disadvantages

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

Unlike other base bases, 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 motors.
2. Molecular structure. The heterogeneity of the molecular structure of mineral mixtures leads to a decrease in their resistance to crystallization and liquefaction.
3. Additives. In synthetics and semisynthetics, additives are better; they do not collapse at high temperatures outside the car. In contrast to them, additives of natural origin are used for mineral water, which burn out when high temperature.
4. The difference in terms of replacement, synthetics change much less often.
5. Mineral water forms more deposits during engine operation.

Among the benefits of mineral motor oil are:

1. These fluids perform better in engines with high mileage... Unlike synthetics, which have great detergent properties, mineral mixtures do not lead to the separation of carbon deposits from the drive units and do not cause clogging of the lubrication system and motor channels. Mineral water washes away carbon deposits from the internal elements of the motor 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 out power units. Mineral oils are thick enough, they are able to fill the increased gaps in the friction units of motors with high mileage.

Conclusion

Mineral motor oils in terms of viscosity characteristics are inferior 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 runaway. In such situations, the use of synthetics or semi-synthetics is unacceptable due to the large amount of carbon deposits inside the motor.

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

Depending on the technical features the engine and the requirements imposed on it by the manufacturer, the recommended type of engine oil is indicated in the vehicle manual.

Today, all lubricants for internal combustion engines can be divided into three main groups. The main criterion for which is the type of oil base. Fig 1

• mineral;
• synthetically;
• semi-synthetic.

Each group of oils has its own characteristics: composition, scope, characteristics, performance indicators. Consider mineral oil.

Production technology

After the separation of light fractions from oil products, the remaining fuel oil is used to obtain oil bases as a result of several step-by-step steps.

What is the difference between mineral oil and synthetics and semisynthetics

In order to understand what mineral oil is and how it differs from synthetic and semi-synthetic lubricants, we will consider the process of its production and features.

Mineral engine oil

Obtained as a result of refining petroleum products and adding active additives that increase performance. The amount of additives in mineral oil can be up to 15% of the total volume lubricant.

How oils are obtained in production and how they differ in the end - video

High viscosity makes the use of oils of this classification difficult and undesirable at low negative temperatures.

Since the aging of the oil occurs primarily as a result of the loss of its properties by the additives, the resource is reduced due to the high content of additives that are part of the mineral oil. The recommended lubricant change interval is 6-8 thousand km.

Due to the increased viscosity of the base, mineral lubricants are good for use in engines with high mileage. Possible risks of leakage from under the seals are reduced, and a thicker oil layer provides maximum protection for parts with depletion. Low cost.

Synthetic oils

Obtained by changing the base at the molecular level. The process allows obtaining an oil base of a sufficiently high level.

Compared to mineral lubricants, the detergent, lubricating, and anticorrosive properties are an order of magnitude higher, which allows the use of much less active additives. The value can reach up to 5% of the total volume.

An insignificant content of active additives increases the service life of synthetic motor oils in comparison with mineral oils. A more advanced oil base allows you to achieve high performance in conditions of increased loads.

Good performance in low temperature conditions due to the low viscosity of the product.

Even a small layer of oil between the rubbing engine elements reliably protects new engines. It can also be used in ICEs with low mileage. The recommended replacement interval is 12-15 thousand km. Quite high cost of production.

Semisynthetics

It is obtained by mixing a mineral and synthetic base with the addition of a package of active additives. Alternative between the aforementioned oils.

The mineral component can reach 70% of the total volume, synthetic up to 30%. The amount of additives is not more than 8%. Due to the moderate viscosity of the product, its use is possible both in hot climates and at low negative temperatures.

Suitable for engines with high mileage and ICE with low mileage. The recommended replacement interval is 9-11 thousand km. The cost of production is higher than that of mineral oils, but less than that of synthetic oils.

Conclusion

Mineral engine oil differs from synthetic and semi-synthetic lubricants in its base, amount of additives, viscosity, resource, scope, working temperature range, replacement interval and cost.

Mineral oil testing

Lubricants are checked according to the following parameters.

Mineral oil test Lukoil 15w-40, video

1. ... Measurements are carried out using capillary viscometers immersed in a thermostat at 40 ° C and 100 ° C. After the oil has reached the required temperature, the time interval required for the oil to pass through the specified area is measured. The viscosity is calculated using the formula.
2. Sulphated ash content. It is measured by the amount of residue after burning the grease. The greater the weight of the residue, the greater the amount of additives. The indicator should not be more than 1.3% of the total for gasoline, and 1.8% for diesel internal combustion engines. The increased ash content is the reason for the increased carbon formation.
3. Alkaline number. In other words, it is an oil resource. During operation vehicle Oxides are formed in the engine oil, which cause corrosion of engine components. During production, active additives containing alkali are introduced into the oil. The higher this indicator, the longer the durability of the oil.
4. Flash point. The temperature of the grease placed in a special device rises no faster than two degrees per minute. Upon reaching a certain temperature and in the presence of fire, the oil flares up. The data is recorded.
5. Pour point. The thermometer reading at which the grease loses fluidity. After placing the sample in a thermostat, upon reaching a certain temperature, the flask is set at an inclination of 45 degrees. When the oil is not solidified, it shifts. To ensure pumpability in ICE system, the pour point of the lubricant should be 5% lower than the declared one.
6. Contamination factor. The amount of dissolved and suspended oxides in the lubricant.
7. Indicator of change in viscosity. A smaller percentage indicates a more stable oil quality to temperature changes.

According to the results of laboratory tests and consumer reviews, the following mineral motor oils can be distinguished.

• LIQUI MOLY MoS2 Leichtlauf 15W-40
• Lukoil Standard 10W-40 SF / CC
• MOBIL Delvac MX 15W-40

Is it possible to mix synthetics and mineral water

From the above, it can be concluded that mineral, synthetic and semi-synthetic lubricants have different oil bases and different volumes and compositions of additive packages. Excellent viscosity characteristics and temperature ranges.

What happens when you add synthetic oil in a mineral lubricated engine and vice versa? Mixing different bases with different molecular structures and different viscosities will not allow a uniform lubricant to be achieved without loss of protective properties.

The interaction of different additives and volumes of one lubricant can lead to the additives of the second lubricant to precipitate. This can happen due to the impossibility of dissolving "mineral" additives in a synthetic base and vice versa.

Perhaps the formation of a viscous mixture that can clog the oil channels, the oil pump. Oil starvation and expensive repairs as a result.

Another reason is the destruction of the oil film by additives of one or the second oil. Lubricating functions are reduced, increased wear of engine elements occurs.

In cases of emergency, it is possible to mix oils of different bases, but only in order to get to the point of changing the lubricant.

Advantages and disadvantages of mineral oils

pros

Minuses

1. Poor manifestation of qualities in conditions of low negative temperatures.
2. Not suitable for vehicles with high-tech internal combustion engines and low mileage.
3. Small resource. Rapid loss of properties due to the high content of additives.

When choosing an engine oil, it is very important to pay attention to the manufacturer's recommendations, as well as to take into account the condition of the engine and the operating conditions. Correspondence engine oil all tolerances and standards will provide maximum engine protection and extend its service life.

For several years now, many owners of two-stroke engines continue to argue about which oil should be used on two-stroke engines, old and new - synthetic or mineral... Let's try to figure it out.

First, a couple of real life examples. One acquaintance, having bought new motor foreign-made, stubbornly fed him "MS-20", relying on extensive experience in operating Soviet-made motors. It was also good that AI-95 used gasoline. The motor lived without problems for two seasons, but on the third it began to malfunction. After some operations to adjust the carburetor, ignition system and replacement of spark plugs, this bright husband nevertheless decided to "open" the engine. It showed that the combustion chamber was literally clogged with carbon deposits, and the rings, as they say, were "buried". All this was implied before the disassembly, but I wanted to make sure and convince the owner. The main problem of the owner, who almost killed the engine (after resuscitation, the engine continues to live today), was that he used the recommended AI-95 gasoline, but, without understanding the oil advice, he decided to take the best that he knew himself ...

Here's another example. Let's say someone with good water-motor experience once decided that he no longer wants to communicate with motors domestic production and, of course, bought a "foreign car", for which I had been selecting oil for two-stroke engines for a long time. For some reason, this person did not want to buy "pre-dissolved" oil, which can simply be poured into a can of gasoline in the right proportion, shaken up and used as intended. To the question: "Why?" the answer was as follows: "I do not trust it, because it does not lubricate the elements of the motor poorly, because it has already been dissolved."

I hope so far there are enough examples from the life of Russian aksakals. Let's go back to mineral water and synthetics.

So what is the difference between mineral oil and synthetic oil, except for the retail price?

Differences in the basis. That is, the composition of the additives in them may be identical, but the basis is different. In mineral oil, roughly speaking and without going deep into chemistry, it is from oil, and in synthetic oil it is from specially obtained chemical elements, which chemists call olefinic polymers, esters, ethers, alcohols, etc. Different manufacturers use various formulations and bases. Oils for two-stroke engines, based on up to 30% of a synthetic component, are produced by many companies. At the same time, “Synthetic” may be written on their packaging. On the one hand, this is a marketing ploy and an indication that the oil really has a synthetic component, on the other hand, this inscription can often mean that the flash point of the oil and its lubricating properties are improved compared to "pure mineral" oil. The oil on the packaging of which has the inscription "Fully Synthetic" is most likely 100% synthetic base. Sometimes manufacturers are cunning by mixing in a certain amount of mineral. True, this does not affect the quality of the oil very much, except that its biodegradability becomes slightly lower and a little more harmful emissions are formed. But it's still a shame - you pay for 100 percent synthetic oil, and you get, for example, 92 or 89 percent ...

Fully synthetic 2-stroke engine oil, that is, 100% consisting of olefins and other elements, appeared for two main reasons: due to the requirements of environmentalists and the birth of powerful and highly loaded engines, in particular, with direct fuel injection systems. For powerful modern ones, oil is required, which, firstly, has good fluidity, which is important for successful functioning in automix systems, and secondly, it is able to lubricate the engine elements well and at the same time burn out quickly and as completely as possible, and, finally, third, to decompose quickly in the open air and be as less harmful to microorganisms as possible. The synthetic base of the oil allows you to satisfy the listed requirements, although not completely, but more successfully than the mineral base, which has only a part of the mineral base - the so-called "semi-synthetics". In short, synthetic oil is more stable and comfortable.

Today, all oil manufacturers are slowly moving into synthetics, at least those who make oils for engine manufacturers. Oil is becoming more expensive, while technologies for producing olefins and analogs, if not cheaper, remain at the same level. However, in retail so far "synthetics" are more expensive than "mineral water".

The following picture turns out: new types of oils are automatically better than the old ones. Of course, in their niches. At the same time, the principle "ascending" works, that is, completely synthetic oil can be poured into the old engine relatively painlessly, while oil intended for "classic" two-strokes cannot be poured into a new two-stroke engine with injection.

So what to do and what to buy? You need to buy what the motor manufacturer advises. If the manual states that oil that meets the TC-W3 standard should be filled, and there are no other comments, then any mineral oil that meets this standard and is credible can be used.

Almost all modern two-stroke engines without the “automix” system can successfully, without any particular harm, work on modern mineral oil, which has a low cost. In motors with the "automix" system or others, but supplying oil to the crank chamber by means of a special device, it is also possible to use mineral oils, but only intended for its automatic supply systems, of course, if there is no indication in the manual that special oil should be used ...

The manufacturer of modern injection two-stroke engines and two-stroke engines of high power indicates the inadmissibility of using oils other than those specified in the operating manual, this must be strictly adhered to. They need a fully synthetic oil, because the motors were made with it in mind.

"Synthetics", which has, as already mentioned, more fluidity than mineral water, which is important for the "point" oil supply system, as well as improved lubricating properties, creates a "stable" film on the engine elements, preventing dry friction even in critical cases. The higher the load on the motor, the greater the likelihood of critical moments, in our case, oil starvation.

It is believed that "synthetics" does not work well in motors with sleeve bearings. However, although special studies on this topic have not been carried out (or there is no available information about them), the practical experience of using synthetic oil suggests that it is friends with plain bearings no worse than mineral water, mainly due to its penetrating properties and the ability to create a tear-resistant film.

So, after all, is it possible to use synthetic oil in "simple two-strokes"? In principle, yes, the motor will not get any worse, and sometimes, especially at the moment of starting and at maximum speed, it may be even better. There will also be less deposits in the combustion chamber. At the same time, a good mineral oil with a low retail price will allow the clock set by the manufacturer to be spent on the motor, that is, the resource. Therefore, here everyone must decide for himself.

What is the bottom line? Read the instructions and, if the manufacturer recommends using mineral oil, then the use of synthetic oil is not prohibited, however, due to high cost and is not “encouraged”. If the use of a specific synthetic oil is recommended, then the mineral oil can no longer be used, even the one corresponding to TC-W3 - in many respects it will not suit the lubrication system of a particular motor.

And the last thing: on long trips on motorboats, it makes sense to take a jar of synthetic oil with you, which can be mixed with all types of oils for two-stroke engines. It is convenient and can help in difficult times, if not for you, then for others who are in a difficult situation.