What is the purpose of car engine oil?

1 Answers
MadelineMarie
07/30/25 3:07am
Functions of car engine oil: 1. To separate the surfaces of relatively sliding parts, thereby reducing wear; 2. To carry heat back to the oil tank and then dissipate it into the air to help the radiator cool the engine; 3. High-quality engine oil can carry carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank through circulation, flushing away dirt generated on the working surfaces of the parts through the flow of the lubricating oil. Engine oil, also known as motor lubricating oil, is composed of base oil and additives. The base oil is the main component of the lubricating oil, determining its basic properties, while additives can compensate for and improve the shortcomings of the base oil's performance.
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