Domestic lubricants are mostly two or three kinds of base oils, such as Jin Mobil and Jin Mobil. Although the target is all of synthetic engine oil, it is not qualified all of synthetic engine oil according to international standards. High performance engine oil should be PAO base oil or ester base oil. For example, the imported GT engine oil belongs to the high-end engine oil of PAO, and it is replaced every 12000 km. Mott and red line are ester engine oil, but ester engine oil is crawler oil, which is not suitable for family cars, and the attenuation cycle is too fast.