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What are the main functions of engine oil?

1 Answers

VonDaisy

07/29/25 6:11pm

Engine oil primarily serves the following functions: 1. Reducing friction and high temperatures; 2. Sealing; 3. Rust prevention; 4. Cushioning; 5. Cleaning. Engine oil can carry carbon deposits, sludge, and worn metal particles from engine components back to the oil tank through circulation, and by the flow of the lubricating oil, it cleans the dirt generated on the working surfaces of the components. Engine oil, also known as motor lubricant, consists of two parts: base oil and additives. The base oil is the main component of the lubricant, determining its fundamental properties, while additives compensate for and improve the shortcomings of the base oil's performance, imparting certain new characteristics, making them an essential part of the lubricant.

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