When the engine is working, the surface of the motor will produce violent friction. The role of lubricant is a good oil film between moving parts, the contact surface separated by wet friction instead of dry friction, the friction variation solid liquid friction. So, in order to give full play to the role of lubricating oil, to extend the service life of the vehicle, it is necessary to pay attention to the selection and use of lubricating oil from the engine. But some drivers and vehicle administration staff in the use of lubricating oil there are often some mistakes, resulting in unnecessary losses.

Domestic car blindly use imported oil

Some owners believe that imports of oil must be better than domestic oil, so in the domestic car, especially the use of imported oil on the new car. However, doing so often there will be many disadvantages The loss outweighs the gain.. If blindly imported oil, because of engine oil in normal working temperature is too thin to low oil pressure, and even reach the specified working pressure, can not meet the needs of normal lubrication, engine wear.

Black oil is oil deterioration

Engine oil is working in a more demanding high temperature conditions, easy to oxidative deterioration, resulting in damage to the lubrication. Therefore, after a certain period of time, usually black oil deterioration, losing its lubricating function. But with the continuous improvement of the quality of lubricating oil, especially the promotion of the use of thickened oil, oil becomes black does not necessarily mean that the oil deterioration. It is degenerate, should be the index test, the regular quality by oil, reduce unnecessary waste.

Blind choice of lubricating oil

The quality of lubricating oil is directly related to the length of service life of the engine. A new type of car is very strict requirements of the lubricating oil, the choice of what lubricant, how to replace and so on should be carried out in accordance with the provisions of the manufacturers. Selection of engine oil, both to pay attention to the quality level, but also pay attention to the viscosity grade. At first, according to the compression ratio, displacement and so on the choice of performance level. Then, according to the temperature and load, the viscosity grade is selected. Good quality oil can ensure good lubrication, reduce wear, reduce maintenance frequency and difficulty. In the choice of oil viscosity, should ensure that the engine lubrication and sealing conditions, as far as possible the use of low viscosity oil, fuel saving.

The best use of multi viscosity lubricating oil

Multi viscosity lubricating oil has the properties of light oil at low temperature, and the properties of heavy oil at high temperature, in the occasion of the recommended use of multi grade oil, a multi-stage oil can replace a variety of single-stage oil. Although multi grade oil can meet the cold and warm seasons and heavy load of engine oil, but is generally recommended the use of single lubricating oil viscosity, is conducive to the lubrication of the engine, prolong the service life of the engine. Therefore, do not think that the use of multi viscosity lubricating oil is the best.

After the analysis of the above introduction, you are not on the car's choice and use of lubricants have a new opinion? As the car approached the lives of ordinary people, it is not only regarded as means of transport. In a sense, the car is also a life. Therefore, all the maintenance supplies and automotive related industry also developed more and more, this also let consumers confused, do not know what your election should choose the right, with consumers on the understanding is not deep, often spend the money to do not need maintenance. Therefore, we should not only love, but also to understand the car!