What to Do If Engine Oil Is Overfilled?
1 Answers
Solutions for overfilled engine oil: The safest method is to extract the excess oil from the engine. The clean oil removed can be saved and reused. If the oil level reaches the crankshaft, it's advisable to extract some oil. It's not recommended to remove the drain plug because the washer for the drain plug also needs to be replaced during an oil change. This washer is made of a soft material that deforms when tightened, ensuring a proper seal. Once removed, the sealing effectiveness is significantly reduced, and a new washer is required. Additionally, removing the drain plug makes it difficult to control the flow rate, and the drained oil cannot be reused. Hazards of overfilled engine oil: 1. Increased engine operating resistance. In modern engines, the crankshaft does not come into contact with the oil level during operation. Overfilling the oil can cause the crankshaft to touch the oil, creating significant resistance at high engine speeds, which affects engine performance. 2. Increased risk of oil burning. If the oil level is too high and the crankshaft comes into contact with the oil, it can easily lead to oil burning. The high-speed rotation of the crankshaft can agitate the oil, producing a large number of oil droplets that can be drawn into the cylinders by the crankcase ventilation system, resulting in oil burning. 3. Carbon buildup and contamination of the catalytic converter. Oil burning can lead to carbon deposits, and some additives in the oil, when burned, can enter the catalytic converter, reducing its conversion efficiency.
