What are the causes of engine oil leakage?
1 Answers
The cause of engine oil leakage is the aging or damage of seals. Over time and continuous thermal cycling, seals gradually harden and lose elasticity, leading to engine oil leakage. Engine oil, motor oil, or engine lubricant is a substance enhanced with additives in base oil, mainly containing anti-wear additives, detergents, dispersants, and multi-grade oil viscosity index improvers. The primary functions of engine oil are to reduce friction and wear on moving parts, remove sludge (one of the functions of dispersants) and varnish (detergents) from the engine, neutralize acids produced by fuel and lubricant oxidation (detergents), improve piston ring sealing, and cool the engine by carrying away heat from moving parts.