What Happens If Too Much Engine Oil Is Added to a BMW?

[MacJosie]

Adding too much engine oil to a BMW can lead to the following phenomena: Excessive oil reduces engine power output: When the engine is running, the crankshaft and connecting rod big ends move rapidly. If there is too much oil, the crankshaft and connecting rods will churn the oil violently. This churning consumes a certain amount of energy, which inadvertently reduces the engine's power output and increases fuel consumption. Additionally, due to the reduced power output caused by excessive oil, the car may exhibit symptoms such as sluggishness, dullness, and increased noise. Excessive oil can cause the engine's exhaust pipe to emit blue smoke: With too much oil, the rapid movement of the crankshaft and connecting rod big ends will inevitably cause oil splashing. A large amount of splashed oil can enter the combustion chamber and burn, resulting in blue smoke from the exhaust pipe, commonly known as "oil burning."