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

[VonAnna]

The symptoms of excessive engine oil in a car are: 1. When there is too much oil, the crankshaft and connecting rods will undergo intense agitation. This agitation not only causes the oil to splash but also generates bubbles. Oil with bubbles entering the lubrication system can lead to wear and tear on the cylinders and pistons. 2. Excessive oil, when agitated by the crankshaft, can easily rise in temperature, causing the oil to degrade and reducing its performance. Additionally, a large amount of oil can be forced into the combustion chamber and burned. Burning oil tends to form carbon deposits on the piston rings, piston tops, valve seats, and fuel injectors, leading to issues such as stuck piston rings and clogged fuel injectors. Excessive carbon deposits can also cause engine knocking. 3. Too much oil increases the pressure in the lubrication system, making oil seals more prone to damage. This can result in oil leaks, increasing oil consumption, polluting the environment, and making maintenance more difficult.