What are the characteristics of an oil change?

1 Answers
SanMaggie
07/30/25 6:17am
The characteristics of an oil change are: 1. Check the viscosity of the oil; if there is no viscosity, the oil needs to be changed; 2. The oil color turns black; 3. Excessive black particles, metal shavings, or carbon deposits in the oil; 4. Whether the smell of the oil is correct. The effects of using inferior oil are: gum and incompletely burned substances can accumulate on valves, intake passages, and combustion chambers, affecting engine performance and causing engine damage. The functions of oil are: 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, helping the radiator cool the engine; 3. To circulate carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank, flushing away dirt generated on the working surfaces of the parts through the flow of the lubricating oil.
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