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Why Choose The Appropriate Lubricating Oil For The Engine

In the process of lubricating oil, viscosity is increased because of the formation of oil sludge and gum. The lubricating oil used in viscosity decrease, it is because of the low viscosity base oil, and choose the polymer more improvement in viscosity of lubricating oil in the process of using, in effect a long time at high temperature under high pressure, resulting in macromolecular hydrocarbon polymer chain rupture, leading to a decrease in viscosity, so the viscosity the change degree of lubricating oil has some relationship with quality.

As for any engine, what viscosity oil is used is related to the climate and the working state of the engine. For example, the South than in the north area of the high temperature, the use of lubricating oil in winter and spring and autumn the same engine under the viscosity will be slightly higher. In addition, the working temperature of engine gas fuel engine dozens of degrees higher than the temperature, in order to maintain the stability of oil film temperature, oil viscosity requirements relatively high, while maintaining high temperature between the piston and the cylinder type engine old seal, viscosity and viscosity stability requirements of gas engine oil has better.

In addition, the evaluation of a lubricating oil quality, mainly to see its viscosity stability, viscosity, oil film thickness, suitable for piston cylinder large gap old engine, low viscosity oil film is thin, the new engine for the piston cylinder clearance is small, the use of high viscosity lubricating oil will fuel costs. But no matter the viscosity is big or small, the oxidation resistance and the anti - deterioration performance of the oil product in high temperature condition must be better.

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