What are the reasons for increased engine oil in cars?

[VanCameron]

The reasons for increased engine oil are: 1. Mixing of gasoline or water into the engine oil During vehicle operation, due to poor sealing of the piston or cylinder, the air-fuel mixture enters the crankcase. When the temperature drops, the gas condenses into liquid and flows back into the oil pan, increasing the oil level. This is the mixing of water into the engine oil; 2. Engine component mechanisms The increase in engine oil volume is related to engine component mechanisms. Insufficient cylinder pressure and poor cylinder sealing can reduce engine power and make starting difficult; 3. Temperature conditions During cold starts, a richer air-fuel mixture is required, so the fuel injector also sprays more gasoline, which causes the remaining gasoline to flow back into the oil pan.