What are the effects of overfilling engine oil on the engine?

[EmersonFitz]

The effects of overfilling engine oil on the engine include: 1. Reduced engine power output; 2. Blue smoke from the exhaust pipe; 3. Piston ring seizure and fuel injector clogging; 4. Crankcase explosion; 5. Decreased lubrication performance. When there is too much oil, the rapid movement of the crankshaft and connecting rod big end can cause oil splashing, and a large amount of splashed oil can be forced into the combustion chamber to burn, resulting in blue smoke from the exhaust pipe. Engine oil, also known as engine lubricant, plays roles in lubrication, reducing friction, assisting in cooling, sealing against leaks, preventing rust and corrosion, and damping vibrations, and is hailed as the blood of the car. Engine oil consists of two parts: base oil and additives.