When the engine is working, the surface of the moving parts will produce intense friction.lubricating oilIts function is to form a good oil film between the moving parts, separate the contact surfaces, replace dry friction with wet friction, and turn solid friction into liquid friction. Then, in order to give full play to the role of lubricating oil and extend the service life of vehicles, attention must be paid to the selection and use of engine lubricating oil. However, some drivers and vehicle management personnel often have some misunderstandings in the use of lubricating oil, causing unnecessary losses.
Blind use of imported engine oil in domestic cars
Some car owners believe that imported engine oil must be better than domestically produced engine oil, so imported engine oil is used on domestically-made cars, especially new ones. As everyone knows, doing so often outweighs the gains, and there are many disadvantages. If imported engine oil is used blindly, the oil pressure will be low due to the engine oil being too thin at normal operating temperature, or even fail to reach the specified operating pressure, which will not meet the requirements of normal lubrication, which will intensify the wear of the engine.
Engine oil black is the engine oil deterioration
Engine oil works under severe high temperature conditions, which is prone to oxidization and deterioration, leading to damage to lubrication. Therefore, after using for a certain period of time, the engine oil usually turns black and deteriorates and loses its proper lubricating effect. But with the continuous improvement of the quality of lubricating oil, especially the popularization and use of thickened engine oil, the blackening of engine oil does not necessarily mean that the engine oil has deteriorated. Therefore, whether the quality is deteriorated, various indicators should be tested, and the oil should be changed regularly according to the quality to reduce unnecessary waste.
Blind choice of lubricants
The quality of lubricating oil is directly related to the length of the engine's service life.New typecarThe requirements for lubricating oil are very strict. The choice of lubricating oil and how to replace it should be carried out in accordance with the manufacturer's regulations. When selecting engine oil, it is necessary to pay attention to both the quality level and the viscosity level. First of all, the performance level should be selected according to the compression ratio, displacement, etc. Then select the viscosity level according to the temperature and load. Good quality engine oil can ensure good engine lubrication, reduce wear and tear, and reduce maintenance frequency and difficulty. When choosing the oil viscosity, you should choose low-viscosity oil as much as possible under the condition of ensuring the lubrication and sealing of the engine to save fuel.
It is best to use multi-viscosity lubricants
Multi-viscosity lubricating oil has the properties of light oil at low temperature, and the properties of heavy oil at high temperature. When multi-grade oil is recommended, one multi-grade oil can replace multiple single-grade oils. Although multi-grade oil can meet the requirements of extremely cold and warm seasons and heavy-duty engine oils, it is generally recommended to use a single-viscosity lubricating oil, which is beneficial to the lubrication of the engine and prolongs the service life of the engine. Therefore, do not think that it is best to use multi-viscosity lubricants.
After the above analysis and introduction, do you have new insights into the selection and use of automotive lubricants? As the car gradually approaches the life of ordinary people, it is no longer just regarded by people as a means of transportation. In a sense, cars are also alive. Therefore, all car-related maintenance products industries are becoming more and more developed, which also dazzles consumers. They don’t know whether to choose the expensive one or the right one. In addition, consumers don’t know well about it, and they often spend wrong money. Do unnecessary maintenance. Therefore, we must not only love cars, but also understand cars! (Dahe.com)
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