Automobile maintenance experts believe that, in general, the following four elements should be paid attention to when selecting automobile oil:
(1) The selection of engine oil should be based on the requirements of the engine. It is not necessary to use too high-grade oil on lower-demand engines, nor can lower-grade oil be used on higher-demand engines.
(2) Multi-grade oil should be selected as much as possible. Multi-grade oil has a good protection effect on the engine due to the saving, long life and high efficiency. Based on the characteristics of multi-grade oil, the phenomenon of premature blackening and lower oil pressure than ordinary oil may occur during use, which is normal.
(3) The quality of some domestic famous brand motor oils is quite good, and the prices are much lower than imported similar products. They can be used with confidence, and there is no need to blindly pursue “foreign oil”.
(4) If the engine is in good condition and the season temperature is low, use a motor oil with a lower viscosity as much as possible to keep the oil circuit open. For example, in high-temperature seasons or severe engine wear conditions, the use of high-viscosity engine oil is beneficial to the formation of oil films and reduce engine wear.