What will happen if too much engine oil is added?

[VonRyan]

If too much engine oil is added, it will have the following effects: 1. Excessive oil will reduce the engine's output power. When the engine is working, the crankshaft and connecting rod big end will move rapidly. If there is too much oil, the crankshaft and connecting rod will stir violently. The stirring of oil by the crankshaft and connecting rod will consume a certain amount of energy, which invisibly reduces the engine's output power and also increases fuel consumption. 2. Excessive oil will cause the engine's exhaust pipe to emit blue smoke. With too much oil, the rapid movement of the crankshaft and connecting rod big end will inevitably cause oil splashing. A large amount of splashed oil will be forced into the combustion chamber and burned, resulting in blue smoke from the exhaust pipe, which is known as "oil burning." "Oil burning" is also a method to determine excessive fuel consumption. 3. Excessive oil can cause faults such as piston ring seizure and fuel injector clogging. A large amount of oil forced into the combustion chamber and burned can easily form carbon deposits on the piston rings, piston top valve seats, and fuel injectors, leading to piston ring seizure, fuel injector clogging, and wear between the piston and cylinder.