For many car owners to come to the book, it must be no stranger to car lubricants. Lubricating oil is also called engine oil. It is a kind of substance that is not missing in the car engine. The main function is to promote the operation of the engine and reduce the engine when it is running. The high temperature generated, but not many friends on the car lubricants, there are few misunderstandings, the following Beimai network Xiaobian will give you a detailed looting of the use of automotive lubricants .
Misunderstanding 1, the lubricant is often added without changing
Frequently checking that the lubricant is correct, but only adding and not replacing can only make up for the lack of oil quantity, but can not fully compensate for the loss of lubricating oil performance. During the use of lubricating oil, the quality will gradually decrease due to pollution, oxidation, etc., and there will be some consumption, which will reduce the quantity. In fact, the lubricant should be replaced after a certain period of time.
Misunderstanding 2, the use of additives is large
The truly high-quality lubricant is a finished product with a variety of engine protection functions. The formula already contains a variety of additives. If you add other additives blindly, you can not only bring extra protection to the vehicle but easily react with the chemicals in the oil, resulting in oil. The decline in overall performance. Especially the current additives are a lot of fake and shoddy products, the damage to the engine is quite large.
Misunderstanding 3, when the oil turns black, it is time to change the oil.
Lubricating oils used in modern automobiles are generally provided with a quiet decomposing agent. The curing agent washes the rubber film adhered to the piston and the black carbon deposit, and is dispersed in the oil to reduce the formation of high temperature precipitates in the engine. Therefore, the color of the lubricating oil is easily blackened after a period of use, but this time The oil has not completely deteriorated. So this statement is not accurate.
Misunderstanding 4, oil can add more
The amount of lubricant should be controlled between the upper and lower scale lines of the dipstick. Because too much lubricating oil will break into the combustion chamber from the gap between the cylinder and the piston to form carbon deposits. These carbon deposits will increase the compression ratio of the engine and increase the tendency to cause knocking; the red hot state of the carbon deposit in the cylinder is also likely to cause premature combustion. If it falls into the cylinder, it will aggravate the wear of the cylinder and the piston, and accelerate the pollution of the lubricating oil. Secondly, too much lubricating oil increases the agitation resistance of the crankshaft connecting rod, which increases fuel consumption.
Misunderstanding 5, the use of imported engine oil
As the saying goes, mountain pigs can't eat fine. Many things need to be adapted to local conditions and adapted to the current situation. The imported oil will not be better, because most imported oils have lower viscosity and are not suitable for domestic car oil viscosity. Requirements. In addition, the materials of various domestic components of the engine are subject to thermal expansion coefficient and clearance compared with imported cars, and most domestic car engines do not have oil radiators. If blindly imported oil is used, the oil will be too thin due to the engine operating at normal working temperature. Low pressure, even the specified working pressure can not meet the needs of normal lubrication, so that the wear of the engine is intensified.
Through the introduction of Xiaobian, do you understand the precautions for the use of automotive lubricants? As a car owner, we are not okay to buy a car, and we must take good care of the car, often repair it, check the car. The performance, to take care of our own car, so that the car can better serve us and make it last longer.
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