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List of the catalog of this article:

• 1,What is the function of engine lubricant
• 2 、 What are the functions of engine lubricants? Why change the oil regularly
• 3, How are engine lubricants classified?
• 4, Is it necessary to add engine lubricant

What is the function of engine lubricant

1. The function of engine lubricant is to resist wear, lubricate, reduce noise, improve Power and fuel saving. Throughout the life cycle of the vehicle, if engine lubricant is added all the time, it will reduce the mechanical wear of the engine and extend the overall life of the engine. Because the function of the oil itself is cleaning, rust removal, lubrication, cooling and noise reduction.

2. The function of engine lubricant is to reduce the friction between the moving parts of the engine, ensure the flexible operation of the engine, improve the operation efficiency of the machine, clean the engine and remove residual impurities in the filter.In places where the engine metal parts have relative movement, engine lubricants need to be used.

3. Lubrication is the main function of engine lubricating oil.

4. The main function of engine lubricating oil is to reduce the friction between the moving parts of the engine, ensure the flexible operation of the engine, and improve the operation efficiency of the machine. The relevant role of lubricating oil in the entire lubrication system of the engine is very important. If not, the engine cannot operate normally. The relevant functions of lubricating oil are as follows.

5. Anti-rust effect Lubricating oil can be absorbed on the surface of the parts to prevent contact between water, air, acidic substances and harmful gases from the parts. Cooling effect The oil can bring heat back to the fuel tank and then dissipate it into the air to help the water tank cool the engine. Therefore, the engine oil must have good cooling performance and be able to withstand high temperatures.

6. Automobile lubricant mainly acts on and lubricates the engine. The engine is the heart of a car. There are many metal surfaces in the engine that will move due to friction. These parts move very fast and the environment is harsh.

What are the functions of engine lubricants? Why change the oil regularly

1. The third function is to prevent rust. The surface of the metal parts in the engine is covered with lubricating oil, thus avoiding oxidation with air and effectively preventing rust. The anti-rust effect of lubricating oil can prevent rusting of metal parts, just like oiling knives, etc., metal parts in the engine also need to prevent rusting.

2. Anti-rust workUse lubricating oil to prevent contact between water, air, acidic substances and harmful gases from the parts on the surface of the parts. Cooling effect The oil can bring heat back to the fuel tank and then dissipate it into the air to help the water tank cool the engine. Therefore, the engine oil must have good cooling performance and be able to withstand high temperatures.

3, so we need to regularly check the liquid level and the degree of contamination of the oil, which is also the reason why we need to change the oil regularly. If the oil is below the specified value and affects the work of the engine, it will cause fatal damage to the engine.

4. Just like oil knives and other things, the metal part of the engine should also be rust-proof. This is due to another important feature of lubricating oil - waterproofness, which makes the engine oil effectively play the role of engine rust prevention. The piston is in contact with the cylinder wall through the piston ring to ensure the tightness of the combustion chamber.

5. In the process of lubricating oil, additives are gradually consumed, and the pollutants generated by combustion are mixed with oil to produce oil sludge and sediment. After a long time, these dirt will not only accelerate engine wear, but also lead to engine rust corrosion, poor heat dissipation and other serious consequences. Therefore, changing the oil in time is the best care for the engine.

How is engine lubricant classified?

1. The classification of engine oil is as follows: ACEA European lubricant classification standard, the latest 2007 version is classified into 3 categories.

2. Lubricating oil is divided into: internal combustion oil, turbine oil, compressor oil, refrigerator oil and cylinder oil. Lubricating oil is the most important variety of lubricants. Because it can play a good lubricating role in machinery and equipment, it also has a cooling and cleaning role, so it has been widely used.

3. According to the SAE classification, lubricants are divided into winter lubricants, summer lubricants and winter and summer general-purpose lubricants. The oil grades used in winter are: 0W, 5w10w, 15W, 20W and 25W. The symbol W represents winter. Before WThe smaller the value, the smaller the low-temperature viscosity, the better the low-temperature fluidity, and the lower the applicable minimum temperature.

4. Engine oil, also known as engine lubricating oil, is composed of base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil. Additives can make up for and improve the shortcomings in the performance of base oil. The classification of automobile oil is as follows: 1AB series gasoline and light-load diesel Motor oil 2C series.

Is it necessary to add engine lubricant

However, if it is necessary to give the engine stronger maintenance, it is also necessary.

So, is it necessary to add engine protector to the car? First of all, we need to figure out what the engine protector is.

I'll tell you very clearly: no need! The so-called engine protector is to levy your IQ tax. There are already many kinds of additives in the oil used in engine maintenance, including enhancing lubrication, removing sludge carbon, preventing metal corrosion, regulating the sticky temperature characteristics, etc., as many as a dozen additives.

It is necessary that the engine oil is only for the normal operation of the engine to solve the ordinary lubrication of the engine, but most engine wear cannot be solved. For example, cold start wear, parking for more than 4 hours, the oil flows back to the bottom of the cylinder. After starting the engine, the oil cannot quickly reach all parts of the engine, which causes more than 90% of the engine wear at this time.

That's why the engine protection agent is very practical. If the engine of the usual vehicle is well maintained and the lubricating oil used is of high quality, in fact, the engine protection agent is not so necessary.However, if stronger maintenance of the engine is needed, it is also necessary.

Organic molybdenum is added as a lubricant to the oil of many F1 racing cars. In addition, if your car is often fully loaded, high-loaded, often climbs steep slopes, etc., it is also necessary to add some engine protectors, which can extend the service life of the engine to a certain extent.