What are the components of engine oil?

1 Answers
Richardson
07/29/25 9:28pm
It is composed of base oil and additives. Composition of engine oil: Engine oil consists of base oil and additives. Base oil is the main component of lubricating oil, determining its fundamental properties. Additives can compensate for and improve the performance of the base oil, imparting it with new characteristics, making them an essential part of lubricating oil. Classification of engine oil: The SAE viscosity classification for winter engine oil grades includes: 0W, 5W, 10W, 15W, 20W, 25W. The symbol W stands for winter. The smaller the number before W, the lower the low-temperature viscosity, the better the low-temperature fluidity, and the lower the applicable minimum temperature.
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