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

[BennettFitz]

The symptoms of overfilled engine oil in a car include: 1. Increased rotational resistance of the crankshaft; 2. Reduced engine output power; 3. Causes the vehicle to burn oil and emit blue smoke; 4. Accelerates wear on cylinders and pistons. The solution for overfilled engine oil is to use a syringe to extract the excess oil. The functions of engine oil are: 1. To alleviate friction and high temperatures; 2. To reduce gas leakage and prevent contamination from external pollutants; 3. To prevent contact between water, air, acidic harmful gases, and engine components; 4. To buffer the pressure rise in the engine cylinder ports; 5. To flush away dirt generated on the working surfaces of components.