What will happen if ... mix mineral oil with synthetic. Mineral oil or synthetics: what is better and can it be mixed if you can fill mineral oil after semi-synthetics

For several years now, as many winners of two-stroke engines continue to argue about which oil is worth using on two-stroke motors, old and new, synthetic or mineral. Let's try to figure out.

First, a couple of examples from life. One friend, having bought a new engine of foreign production, stubbornly fed his "MS-20", relying on the extensive experience of operating the Soviet motors. Well, the gasoline used AI-95. Motor lived without problems, two seasons, but the third began to give failures. After some operations for setting up the carburetor, the ignition and replacement system, this light husband decided on the "opening" of the motor. It showed that the combustion chamber is literally clogged by Nagar, and the rings, as they say, "lay down". All this was implied before disassembly, but I wanted to make sure and convince the owner. The main problem of the owner, almost a killing motor (after resuscitation, the motor continues to live today), it was that he used the recommended gasoline of the AI-95 brand, but, without sobraying in the oil councils, decided to take the best of what he knew himself .

And here is an example. Say someone who has a good water-motor experience, once decided that no longer wants to communicate with the motors of domestic production and, of course, bought a "foreign car" for which the oil for the two-strokes was picked up. For some reason, this man did not want to buy a "pre-dissolved" oil, which can be simply pouring into a canister with gasoline in the desired proportion, shake and use it to be destroyed. To the question: "Why?" The answer was as follows: "I do not trust, as it does not smear the elements of the engine badly, because it has already been dissolved."

I hope that there are enough examples from the life of domestic aksakals. Let's go back to mineral and synthetics.

So what differs mineral oil from synthetic, with the exception of the retail price?

Differences are based on. That is, the composition of the additives in them can be identical, but the basis is different. In mineral oil, it is roughly speaking and not deepening in chemistry - from oil, and in synthetic - from specially obtained chemical elements that chemists are called olefin polymers, esters, simple ethers, alcohols, etc. Different manufacturers use different compositions and foundations. Oils for double-skate motors, which are based on up to 30% of the synthetic component, produce many firms. At the same time, "Synthetic" can be written on their packaging. On the one hand, this is a marketing stroke and an indication that there is a synthetic component in the oil, on the other, this inscription may often mean that the oil outbreak temperature and its lubricating properties are improved compared to the "pure mineral oil". In the oil on the packaging of which there is an inscription "Fully Synthetic", most likely, the synthetic base is 100%. Sometimes manufacturers are shy, mixing some amount of mineral. True, this is not very reflected on the oil, except that it becomes slightly lower than its biodegradability and slightly more formed harmful emissions. But still, it's a shame - you pay for 100 percent synthetic oil, and you get, for example, 92- or 89 percent ...

Fully synthetic oil for two-stroke engines, i.e., 100% consisting of olefins and other elements, appeared in two main reasons: due to the requirements of ecologists and the birth of powerful and high-loaded motors, in particular, with the systems of direct fuel injection. For powerful modern, oil is required, which, firstly, has good fluidity, which is important for successfully functioning in AutoK systems, secondly, it is capable of lubricating the elements of the motor and at the same time quickly and maximizely burn out and finally, Thirdly, to quickly decompose outdoors and be as small as possible for microorganisms. The synthetic base of the oil allows you to satisfy the listed requirements, although not completely, but more successful than mineral, which has only part of the mineral base is the so-called "semi-synthetic". In a word, oil on a synthetic basis is more stable and convenient.

Today, all the oil manufacturers "go to the synthetics" are slowly, at least those who make oils for motor manufacturers. Oil is becoming more expensive, and technology for producing olefins and analogues, if not cheaper, then remain at the same level. However, in retail while "Synthetics" remains more expensive than "mineral water".

The following picture is obtained: new varieties of oils are automatically better than the previous one. Of course, in their niches. At the same time, the principle "on ascending", i.e., in the old motor can be relatively painlessly pouring completely synthetic oil, and in a new two-stroke motor with injection, it is impossible to pour oil for "classic" two-stakeholders.

So what to do and what to buy? You need to buy something that advises the manufacturer of the motor. If in "Manual" it is stated that the oil corresponding to the TC-W3 standard should be poured, and there are no other comments, you can use any mineral oil that meets this standard and confidence.

Almost all modern two-stroke motors without the AUTOMICS system can be successful, without much harm to work on modern mineral oil, having a low cost. In motors with AUTOMICS system or other but oil in a crank chamber through a special device, mineral oils can also be used, but only intended for systems of its automatic feeding, of course, if the manual does not specify that special oil should be used .

The manufacturer of modern injection two-stroke motors and two-stroke motor-powered motors indicates the inadmissibility of the use of oils, besides those indicated in the manual, this is necessary to strictly adhere to it. It is necessary to fully synthetic oil for them, because the motors were made on it.

Synthetics, which has already been said, greater than mineral water, fluidity, which is relevant for the "point" system of oil supply, as well as improved lubricant properties, creates a "stable" film that prevents dry friction even in critical cases. The higher the loading of the motor, the greater the likelihood of the appearance of critical moments, in our case - oil starvation.

It is believed that "Synthetics" works badly in motors with sliding bearings. However, although there were no special research on this topic (or there is no available information available), the practical experience of using synthetic oil suggests that it is friendly with the sliding bearings not worse than mineral water, mainly due to its penetrating properties and the ability to create a fracture-resistant film.

So, after all, is it possible to use synthetic oil in "simple two-stakeholders"? In principle, yes, the motor will not be worse, and sometimes, especially at the time of launch and in the maximum revolutions mode, it may even be better. There will also be less deposits in the combustion chamber. At the same time, good mineral oil, which has a low retail price, will allow you to move on the motor installed by the manufacturer hours, i.e. the resource. Therefore, everyone should decide here.

What is the result? Read the instruction and, if the manufacturer recommends using mineral oil, the use of synthetic is not associated, however, due to the high cost and not "encouraged". If it is recommended to use a specific synthetic oil, then mineral can not be applied, even the corresponding TC-W3 is recommended, - in many parameters it does not fit the lubrication system of a particular motor.

And last: in long-range hikes on the motels, it makes sense to take with him a jar of synthetic oil, which can be mixed with all the types of oils for push-pull motors. It is convenient and can help in a difficult moment, if not for you, then another that fell into a difficult situation.

Many motorists are constantly concerned about the same question - how can you extend the reliable and uninterrupted operation of the engine of your car. The key to the answer to it is the correct selection and timely replacement of high-quality engine oil - the task, from the right solution of which the service life directly depends.

How to make a weighted and right choice in a huge assortment of modern lubricants? How does mineral oil differ from its synthetic "competitors"? What lubrication is better and can it be mixed with different types 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.

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Modern materials that increase the wear resistance of parts of the automotive motor are divided into three main categories - mineral, semi-synthetic and synthetic oils. Consider each of the types of lubrication more.

Mineral

It is made from natural mineral - oil, by distillation, distillation and subsequent refining. There are three main types of mineral oils that differ in the composition of the hydrocarbons included in them: paraffin (most suitable for the manufacture of lubricants), naphthenic and aromatic. Sulfur, which is part of the source raw materials, increases the oxidative properties of the final product, so its content in high-quality lubricant should not exceed one percent.

Pure mineral engine oil very quickly loses the necessary properties, so it adds a large number of different anti-corrosion, detergents and increasing the wear resistance of "additives". Material is characterized by high viscosity, which allows it to be used in aggregates that have a considerable life and "production" of sealing elements.

Synthetic

This is a more modern type of lubricant for the automotive engine, obtained by the synthesis of certain substances. Several types of this product are distinguished: hydrocarbon, polyester, silicone, polyglycol synthetic oils, as well as oils made on the basis of phosphoric acid esters. Quite complex chemical production requires significant investment, therefore the product itself "at the output" is much more expensive than its mineral counterpart.

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

• reduced overheating sensitivity;
• preservation of operational properties in low temperatures;
• increased fluidity that reduces friction between the details;

Synthetic engine oil is practically no oxidized, it can be used in conditions of elevated loads on the engine and various temperature modes.

Semi-synthetic

The composition of this product includes mineral oils for the engine (or rather, their base components), mixed with synthetic components in the proportion of 70 to 30. Such a lubricant is a certain compromise between the mineral machine and "synthetics" - it has quite good performance characteristics, and At the same time not very expensive.

Characteristics of mineral and synthetic engine oil

Consider the main characteristics of lubricants for internal combustion engines, summarizing them in a simple and convenient table:

Now, having studied the necessary parameters, we will try to answer the question more expanded than the diffuse mineral engine oil from synthetic and semi-synthetic.

What differ

Mineral water and synthetics

Already from the very name it can be seen that mineral lubricants are produced from natural oil hydrocarbons, while synthetic - the product obtained as a result of chemical reactions. Why did the need for a rather complicated synthesis? It's all about the operation of operating automotive engines - they are accompanied by a sharp change of revolutions, the difference between temperature modes, a change in friction speed and so on. The basic base of mineral engine oil does not always ensure maximum stability of the operation of the engine.Indicators of synthetic lubricants are much better, as they are less affected by external factors.

Let's consider in more detail, which is the difference between mineral oil from synthetic:

• origin: The basis of "mineral water" was created by nature itself, "Synthetic" - the result of molecular synthesis;
• reaction to the change in the temperature mode of the engine;
• saving the main characteristics during the operation of the engine: "Synthetics" saves its basic parameters much longer;
• fluidity: high degree of viscosity of mineral engine oil does not allow it to be used under conditions of ultra-low temperatures;
• the change in the stability of the main parameters at high temperature: some "additives" in the composition of mineral lubrication may simply burn out.

So, the main differences between "synthetics" from mineral engine oil is the higher stability of its characteristics and properties in various temperature modes, as well as the timing of the units.

Mineral water and semi-synthetic

As a product obtained as a result of mixing two bases, "semi-synthetic" has higher rates of stability compared to mineral engine oil, slightly yield to synthetic. It is more often used in cars with significant mileage, which are operated at temperatures not lower than 20 º C.

What oil is better

Now will answer another important question - what kind of oil, mineral or synthetic oil? It seems that synthetic lubricants have an indisputable advantage over their mineral "colleagues", but we will not forget that everything in our world is relative. The fact is that the use of "synthetics" is not always an acute necessity. For example, we know the platinum better conducts an electric current than copper, but it still does not mean that the wiring in our apartment should be made of platinum elements. Copper wires are quite enough to use household appliances.

In certain cases, the use of "synthetics" for the engine lubrication is generally contraindicated - this applies mainly to the aggregates with a large mileage.Sealing glands in them, as a rule, strongly worn and synthetic lubricant with high fluidity will not be able to ensure normal operation of the motor - it will quickly flow or evaporate. If your car is released by the domestic producer and has a significant service life, do not doubt - boldly acquire Russian Mineral oils "LUKOIL", "AZMOL" or "TNK" - the quality of these products can provide reliable engine protection.

The advantage of mineral engine oil is also its ability to gradually "wash" deposit on the elements of the engine, while the flupent "synthetics" simply "scraps" them. At the same time, oil belongings and filters are clogged with large fractions of soot and nagar. If you are operating your car in the region, where the temperature in the winter does not fall below 20-25 º C, then there is no sharp need for the mandatory use of synthetic lubrication.

The main thing here is that all the basic parameters of lubricants approached precisely for your engine. The only moment is mineral or semi-synthetic engine oil requires more frequent replacement. With a competent execution of this condition, no harm to the engine from the use of "mineral water" and "semi-synthetic" will not be applied.

Attention! The replacement of mineral engine oil in the engine must be carried out at least than 5-7 thousand km of the car run.

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 ICA. This question arises, as a rule, when replacing lubrication in the engine or in an emergency, when it is necessary to urgently add it. What to do if "at hand" did not turn out to us the brand of engine oil, and its level dropped to a critical mark? As always, listen to the advice of specialists.

Most experts argue that mixing various types of oils in the engine is a bad idea. They are confident - the formation of a "cocktail" from different additives contained in autosals can lead to a chemical reaction to obtain a mixture that does not correspond to any standards and requirements. However, the very fact of the existence of "semi-synthetic" proves to us that motor oils can still be mixed. Naturally, when performing these actions, you need to comply with the necessary conditions:

Attention! When mixing motor lubricants, use the products of one manufacturer, and at the first convenient case, perform a complete replacement of oil and be sure to change the filter.

Video about mixing automotive oils:

So, we still managed to find out if synthetic, mineral and semi-synthetic oil can be mixed without damaging the car engine. We also proved that the use of expensive high-tech motor lubricants is not always justified. We think that it was touched by a rather important topic that exciting many car owners and hope to reveal it in more detail in the following articles.

We continue to publish articles from the "What will happen if ...". Today we will discuss what will happen if in the engine where there is already synthetic oil, adding mineral oil.

Disputes about what will happen if in the synthetic oil in the engine to pour mineral and on the contrary, no first year continues. Some say that such a "cocktail" can cause irreparable harm to the motor. Others argue that there should be no problems, emphasizing that the main thing is to pour oil of the same manufacturer.

Let's figure it out, is it so harmful to the motor - mix mineral with synthetic oil.

What is the engine oil for?

Motor without butter, as shown experiments, can work. But - not long, and after such a "dry" operation, the engine can be safely sent to scrap metal. The fact is that the engine oil performs several important functions:

Protects the friction surfaces from wear, jamming and other damage;

Reduces to a minimum loss of friction energy;

Is cleaning the engine system;

Removes heat from friction surfaces;

Reduces the noise and vibration of gear wheels, reduces shock loads.

In short, it provides a long and uninterrupted operation of the car engine.

Than "mineral water" differs from "synthetics"

Let's remember what is part of the mineral, and what is synthetic engine oil.

Mineral oils are direct refining products, which are distinguished by the instability of their characteristics and a high degree of evaporation. To make such oils more efficiently, they add a large number of stabilizing additives that are prone to relatively rapid destruction. Because of this, mineral oil is recommended as often as possible on "Fresh".

Synthetic oils are products obtained by synthesis, with their characteristics (viscosity, flare and frozen temperature, alkaline and acidic numbers) can be set during production. The properties of such oils are stable, and their relatively high viscosity-temperature characteristics allow you to not add a large number of additives.

Thanks to such properties and small, compared to mineral, the number of additives, the synthetic oil serves longer, and it is necessary to change it less frequently than the "mineral water". In addition, synthetic oil differs from mineral to a higher thermalocosal stability, low evaporation and a small tendency to form a car and sediment.

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

Vissedy-thickening

Anti-wear

Antioxidative

Corrosion and rusting inhibitors

Antiphen

Fiction modifiers

Depressor additives.

Mineral oils of different manufacturers will differ not only on the basic composition, but also according to the composition of the additives used in them. The same can be said about synthetic oils. The difference in additives is dictated by many reasons and often depends on what climatic zone the car is operated. We are not in vain focused on these chemical components of oils - because it depends on them whether the engine on the "cocktail" from mineral and synthetic oil will work.

Main harm - from additives

If only the foundations of mineral and synthetic oil were mixed, then it may be much less damage to the engine than the one that the additives in these oils produce in their chemical composition. The fact is that not all additives contained in mineral oil are dissolved in a synthetic basis. As well as not all the additives "Synthetics" can dissolve at the heart of mineral oil. What can happen in every single case of mixing such oils - no one predicts. Uniquely one - the engine from such a "cocktail" will be bad. Bad, first of all, from those who fell into an insoluble precipitate of the elements of the additives of the oil, which was added - no matter, mineral or synthetic.

This non-dissolved precipitate can form a viscous mixture that burst the oil grid, oil channels, which is why the motor will experience oil "starvation".

Work in this mode, even in a short time interval, can lead to the exit of the unit fail. It must be remembered that the oil of a certain composition (mineral or synthetic) forms on the rubbing surfaces of the engine parts is chemically modified layers and adsorbed films. When adding other additives, these layers are destroyed, and the wear of parts increases, which also greatly harms the motor.

What if you still mixed mineral oil with synthetic

First of all, do not panic. And try as soon as possible, preferably in a gentle mode (without loads), get to the nearest service station. Where you do the diagnosis of the engine and determine whether the washing of the oil system will need, or you can do a simple substitute for oil and oil filter.

P. S. Justice It is worth saying that the addition of mineral oil into synthetic and vice versa without applying serious damage to the engine is still possible. But only if you added the oil of the same manufacturer and are going to ride such a "mixture" for a short time. Ideally - to the nearest one hundred. But in this case, the replacement of oil and filter cannot be avoided.

An article on how to choose an oil for the car engine. Types and classification, recommendations for choosing. At the end of the article - video about how to choose engine oil.

Indeed, how to choose oil for the engine? It is important to know that the correct choice of engine oil and shifting it in due time is very important conditions that determine the stable operation and the durability of each internal combustion engine.

The special problem for buyers create advertising booklets, where "every kulik his swamp praises", that is, each manufacturer guarantees the reliability of its own products, and here, choosing the oil for the engine, indeed, it is not difficult to get confused.

And after you finally confused, you have nothing left, as soon as you contact the seller, fully relying on his opinion. And it will be your mistake, because any seller will always pursue exactly its commercial goals without thinking about the further fate of your car. In order not to deceive in your expectations, continue to read the article further.

Types of lubricant

• mineral;
• semi-synthetic;
• hydrocracking;
• synthetic.

Synthetic oil, referred to as "synthetics" drivers, are obtained by synthesizing gases.

Semi-synthetic oil, or the so-called "semi-synthetic" drivers, occurs as a result of mixing in the calculated parts of synthetic and mineral oils.

Hydrocracking oil, like mineral, is also made of oil, but it passes a rather complicated processing procedure and therefore, in its structure, it becomes similar to a synthetic substance than on the mineral water.

Mineral oil

• paraffin;
• naphthene;
• aromatic.

The main advantage of mineral oil is considered a relatively low price. However, those who are used to save, it is necessary to understand what it serves for a short time, and it will have to change more often. Experience shows that mineral-based oil is often used for aggregates operating in gentle mode. Only on such conditions the bay of oil into the engine will not deliver the aggregate problems.

Synthetic oil

Good fluidity of "synthetics" in cold conditions provides a slightly launch of a motor in winter. On the other hand, this oil has evaporation temperature is quite large, which makes it more resistant to heating.

Semi-synthetic oil and hydrocracking

They are produced by mixing the synthetic and mineral bases. This solution is at times increases the performance of mineral products, while allowing you to leave the cost quite acceptable.

That is why the semi-synthetic oils were for a long time for the Golden Middle Car owners and for the price, and in quality. But today, many car enthusiasts prefer to use hydrocracking oil as an alternative.

The hydrocracking process itself is a peculiar "alignment" of hydrocarbon compounds due to the movement of atoms when the isomers are as a result. The main advantage of these oils is their higher performance compared to the "synthetics" and a relatively low price.

The main drawback of hydrocracking - relatively angry aging. In other words, such oil loses the necessary properties too quickly.

Choose engine oil with classification

The main problem is that the use of class oils is below the one that is specified in the manufacturer's recommendations, often leads to premature wear of the motor, and even to unexpected breakdowns. And on the other hand, when using the oil class above the recommended, it may be incompatible with the car.

Therefore, it is necessary to take into account all the wishes of the manufacturer, which are reflected in the instructions for the machine. Let's consider this question in more detail.

After all, it is viscosity that determines the oil fluidity in cold conditions when it comes to starting and operating the engine in the winter season. In addition, it is the viscosity of the oil that makes it clear how liquid it will be when the engine after the start reaches the optimal temperature.

So, we now know that the lubricant is divided by a seasonal sign: winter, summer and all-season oil. A canister containing winter lubricant has the designation in the form of the "W" index (from the German Winter - Winter), as well as certain numbers that are set before this index. On the canes you can see the marking on SAE from 0W to 25W. The oil for the warm season is also indicated by the number of SAE from 20 to 60.

However, let's immediately say that winter and summer oils in a separate form today are quite difficult to find, or it is impossible at all, because they almost displaced all-season lubricants. It is easy to explain - few of the drivers will deliver the pleasure of changing the oil for the season. Much more pleasant to do this at all.

The all-season oil is combined, reflecting the combinations of winter and summer types: SAE 0W-20, 5W-30, 10W-40, etc.

Note: The degree of viscosity of the oil should be chosen from the list, which is listed in the manufacturer's instructions that released the machine.

The American analysis system (API) is recognized more loyal. And the European testing system exhibits more stringent claims to lubricant materials. The main task of testing is the analysis of the most important quality oils, and after that it is referred to as the appropriate class.

Tests are carried out in motors directly either on special stands. Specialists analyze the ability of oil to protect the parts of the motor from corrosion, detergents, anti-cylinder properties, etc.

If you carefully consider packaging, then near the specified indexes S and with you notice another Latin letter used to further designate the quality of the oil. Moreover, the range of this letter from the beginning of the alphabet indicates the degree of quality - the closer, the worse, and vice versa.

For example, SA or SB lubricant is manufactured for a gasoline unit, but SA quality is worse than SB. Oil for diesel engines also has its own designations - CA, CB, etc.

Designation of oils of this classification is performed as:

• letters a for gasoline engine cars of passenger cars, small vans and minibuses;
• letters b for diesel engines of the same types of cars;
• letters E for diesel engines of heavy trucks and buses.

Note: In 2004, another class appeared in this classification, which is indexed by the letter C. This is true, universal lubricants, equally used in gasoline, and in diesel engines.

Choosing a brand of oil

Attention: Choose lubricant, referring only to the manufacturer, extremely undesirable. The engine is not doing anything to the manufacturer. For him, the period of oil replacement is important, taking into account the quality of fuel and nuances of using the machine.

As for the use of an increased viscosity oil for a car with a large or medium mileage, this is not prohibited, but, nevertheless, the driver must be experienced enough to take into account the degree of motor wear, seasonality and much more.

Video on how to choose a car engine oil:

Depending on the technical features of the engine and the requirements, to it by the plant by the manufacturer, the recommended type of engine oil is indicated in the car operation manual.

To date, all lubricants for DVS can be divided into three main groups. The main criterion of which is the type of oil base. Figure 1.

• mineral;
• synthetically;
• semi-synthetic.

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

Production technology

After the release of light fractions from petroleum products, the remaining fuel oil is used to obtain oil bases as a result of several phased steps.

What is the difference between mineral oil from synthetic and semi-synthetic

In order to understand what mineral oil is and in the difference from synthetic and semi-synthetic lubricants, consider the process of its production and features.

Mineral motor oil

They are obtained as a result of cleaning petroleum products and adding active additives that increase operational performance. The number of additives in mineral oil can reach up to 15% of the total volume of lubricant.

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

A large viscosity makes the use of oils of this classification of predicary and undesirable at low negative temperatures.

Since the aging of the oil occurs primarily as a result of losses by additives of its properties, the resource is reduced due to the large content of additives of the mineral oil. The recommended interval of replacement of lubricants is 6-8 thousand km.

Due to the increased viscosity of the base, mineral lubricants are good for use in engines with large runs. Possible risks of the appearance of leaks from under seals are reduced, and a thicker oil layer provides maximum protection of parts with the production. Low cost.

Synthetic oils

Obtained due to the change in the base base at the molecular level. The process allows you to receive a high-level oil base.

Compared to mineral lubricants, cleaning, lubricating, anti-corrosion properties are an order of magnitude higher, which allows you to use much less active additives. The value can reach up to 5% of the total.

A minor content of active additives increases the resource of synthetic engine oils compared to mineral. A more perfect oil base allows you to achieve high performance in conditions of enlarged loads.

Good manifestation of qualities in low-temperature conditions due to the low viscosity of the product.

Even a slight oil layer between driving engine elements reliably protects new engines. You can also be used in DVS with minor runs. The recommended replacement interval of 12-15 thousand km. Quite high cost of products.

Semi-synthetic

It turns out by mixing the mineral and synthetic base with the addition of a package of active additives. Alternative to the aforementioned oils.

Mineral component can reach 70% of the total volume, synthetic up to 30%. The number of additives is no more than 8%. Due to the moderate viscosity of products, its use is possible both under conditions of hot climate and at low negative temperatures.

Suitable for motors with high mileage and internal combustion engine. The recommended replacement interval of 9-11 thousand km. The cost of products is higher than that of mineral oils, but less than synthetic.

Output

Mineral engine oil differs from synthetic and semi-synthetic lubrication by its basis, the number of additives, viscosity, resource, the application area, the working temperature range, the replacement interval and the cost.

Testing mineral oils

Checking lubricants is carried out 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 a temperature of 40 ° C and 100 ° C. After the oil has reached the required temperature, the time interval is measured, which is necessary to pass by oil the specified area. Viscosity is calculated by the formula.
2. Sulfate ash. It is measured by the amount of residue, after burning lubrication. The more the weight of the balance, the greater the number of additives. The indicator should not be more than 1.3% of the total amount for gasoline, and 1.8% for diesel engine. Increased ash content is the cause of increased nagar formation.
3. Alkaline number. In other words, this is an oil resource. When operating a vehicle in engine oil, oxides are formed, which cause corrosion of engine elements. In case of production, active additives containing alkali are introduced into the oil. The higher this indicator, the greater the durability of the oil.
4. Flash temperature. The lubricant temperature placed in a special device rises no faster than two degrees per minute. Upon reaching a certain temperature and in the presence of fire, oil flashes. The data is fixed.
5. Frozen temperature. The thermometer indicator at which lubrication loses fluidity. After placing the sample into a thermostat, to achieve a certain temperature, the flask is set at a tilt of 45 degrees. With an uncomfortable oil occurs its shift. To ensure pumping in the system in the DVS system, the temperature of the lubrication temperature must be 5% lower than the declared one.
6. Pollution coefficient. The number of soluble and suspended oxides in the lubricant material.
7. Viscosity change rate. A smaller percentage indicates more stable oil qualities to change the temperature.

According to the results of laboratory tests and consumer reviews, the following mineral cars 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

From the previously listed, it is possible to conclude, mineral, synthetic and semi-synthetic lubricants have different oil bases and different volumes, and additive package compositions. Excellent viscosity characteristics and temperature ranges.

What will happen when adding synthetic oil into an engine lubricating mineral lubricant and vice versa? The mixing of different bases with different molecular structures and different viscosity will not allow the homogeneity of the lubricant material without losing protective properties.

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

It is possible, the formation of a viscous mixture, which is capable of clog oil canals, oil pump. Oil fasting and expensive repairs as a result.

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

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

Advantages and disadvantages of mineral oils

pros

Minuses

1. Poor manifestation of qualities in low negative temperatures.
2. Not suitable for cars with high-tech internal combustion engine and small runs.
3. A small resource. Fast loss of properties due to a large additive content.

When choosing engine oil, it is very important to pay attention to the manufacturer's recommendation, as well as take into account the engine condition and operating conditions. Matching with engine oil to all tolerances and standards will ensure maximum engine protection and will prolong its service life.