- Engine overheating: Too much oil can reduce the flow of coolant around the engine, leading to overheating. This is because the excess oil can block coolant passages and reduce the transfer of heat from the engine to the coolant.
- Oil leaks: Excess engine oil can cause leaks from various gaskets and seals in the engine, leading to low oil levels and potential damage to the engine.
- Increased oil consumption: Excess oil can lead to increased oil consumption as the engine will burn off more oil than necessary. This can also cause the catalytic converter to overheat and malfunction, leading to expensive repairs.
- Fouled spark plugs: Excess oil can foul the spark plugs, causing them to malfunction or fail. This can lead to engine misfires, rough idling, and decreased performance.
- Engine damage: In severe cases, excess engine oil can cause engine damage by thinning the oil film between moving parts, leading to increased wear and tear. This can eventually lead to major engine repairs or even engine failure.
