What are the symptoms of overfilling engine oil in a car?

[DiLila]

Symptoms of overfilling engine oil in a car: 1. Increased crankshaft rotation resistance; 2. Reduced engine power output; 3. Causes oil burning and blue smoke emission; 4. Accelerates wear of cylinders and pistons. Engine oil, also known as engine lubricant, is regarded as the lifeblood of a car. It serves multiple functions including lubrication and friction reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, as well as shock absorption. Engine oil is a substance enhanced with additives in base oil, primarily containing anti-wear additives, detergents, dispersants, and multi-grade viscosity index improvers. Used for lubricating internal combustion engines, its main functions are to reduce friction and wear of moving parts, and to remove sludge and varnish from the engine.