What lubricating oil is better for car maintenance?

First of all, make sure it is genuine engine oil. Secondly, no matter what brand of engine oil, the viscosity must match the purpose of the engine, and the label must not be wrong. Too high viscosity will increase the engine running resistance and fuel consumption, while too low viscosity will lead to poor sealing performance and insufficient power. Therefore, the oil should be changed according to the viscosity recommended by the manufacturer.

Use the appropriate viscosity, and then select the oil according to the engine type. Self-priming engines with displacement less than 2.0 can be qualified with semi-synthetic engine oil. However, for turbocharged vehicles, all synthetic engine oil must be used. When the supercharging part starts to work, the engine torque will increase exponentially. At this time, the oil film covering the engine friction part will bear several times higher shear force than before, and all synthetic engine oil can meet the requirements of high oil film strength.

Large displacement cars, sports cars and SUVs have higher working temperature and oil temperature than ordinary cars because of their heavy weight and high engine power. Synthetic engine oil has good high-temperature performance, which can not only ensure the stability of oil film during intense driving, but also ensure that these expensive engines can reduce wear during cold start. Hope to adopt.