The frequency of the use of motor oil in maintenance and maintenance is very high. High quality lubricating oil in addition to engine protection, reduce the number of oil, but also can save the cost of gasoline. Also note that don't use undeserved cause for lubricating oil vehicle failure, improper use in general, source to riders of lubricating oil four "misunderstanding".

For the following four kinds of misunderstanding, the relevant technical personnel to give a professional explanation:

Misunderstanding 1: lubricating oil often do not need to change

Often check the oil is correct, but only to compensate for the lack of replacement can only make up for the lack of oil, but can not fully compensate for the loss of lubricant performance. Oil in the use of the process, due to pollution, oxidation and other reasons, the quality will gradually decline, but there will be some consumption, so that the number of.

Misunderstanding two: the use of additives

The real high quality of the lubricating oil is a variety of engine protection functions of the finished product, the formula has contained a variety of additives, including anti - wear agent, and the most exquisite formula of lubricant to ensure the full play of all kinds of performance. The addition of other additives can not only bring additional protection to the vehicle, but the chemical reaction of the chemical substances in the oil and the oil, resulting in the decline of the comprehensive performance of the oil.

Myth three: what time should the lubricating oil black oil change

This kind of understanding is not comprehensive. For lubricating oil without adding a quiet dispersant, the color is black, it is a serious deterioration of oil, but the use of modern automotive lubricants generally have a quiet decomposition agent. This quiet agent will adhesion on the piston glue film and black carbon washing down, and dispersed in the oil, reduce the formation of sediment in the engine high temperature, so the lubricating oil using a period of time after color to black, but when the oil did not completely deteriorated.

Error four: the lubrication oil can be added more

Lubricating oil quantity should be controlled between the oil and the lower scale line. Because too much oil from the gap between the piston and cylinder in fleeing into the combustion chamber to form coke. These carbon will improve the engine compression ratio, increase the knock tendency; coke in the cylinder was glowing red also easily lead to premature combustion, such as falling into cylinder exacerbate the cylinder and piston wear, but also accelerate the oil pollution. Secondly, the lubricating oil increases the friction resistance of the crankshaft connecting rod, so that the fuel consumption increases.