本文阐述了润滑油在汽车使用中的重要性,同时提出正确选用内燃机润滑油的原则,列举出我国在使用中出现的问题,并就故障产生的原因进行了分析和研究。为便于探讨故障原因,提出了判断用油的简易办法。最后通过试验说明要消除故障就必须合理用油,并经常维护保养内燃机 This article expounds the importance of lubricating oil in the use of the automobile. At the same time, it puts forward the principle of choosing the lubricating oil of the internal combustion engine correctly, lists the problems that arise in the use of our country, and analyzes the causes of the failure. In order to facilitate the discussion of the cause of the malfunction, a simple method for judging oil consumption was proposed. Finally through the test shows that to eliminate the fault must be reasonable oil, and regular maintenance of internal combustion engine