13/12/2024
Why Does Engine Oil Turn Black ??
➪➪ 1. Soot Buildup: ☟☟☟
During combustion, the engine produces soot and other impurities. The detergent additives in engine oil work to keep these particles from sticking to internal surfaces.
As they trap soot, the oil turns black, which actually means it's doing its job!
➪➪ 2. Heat Cycles and Oxidation: ☟☟☟
When oil molecules mix with oxygen, they start to break down in a process called oxidation.
High engine temperatures speed this up, darkening the oil. The byproducts of oxidation are acidic, which can shorten the oil's life.
➪➪ 3. Contamination and Wear: ☟☟☟
Oil can also turn black when it mixes with contaminants or tiny metal particles from engine wear.
The only way to spot this kind of contamination is through oil analysis.
