What are the effects of excessive engine oil?
3 Answers
Effects include increased fuel consumption; reduced power; accelerated carbon buildup, damage to certain car components, leading to crankshaft oil seal leakage, and shortened oil shelf life. Below is relevant information: 1. When the engine is operating, its components undergo intense agitation. This not only increases internal power loss but also causes more oil to splash onto the cylinder walls, leading to oil burning issues. 2. Engine oil is viscous. Adding too much makes it harder for moving parts to rotate, resulting in poor power output, sluggish acceleration, unresponsive throttle, increased engine noise, higher vehicle fuel consumption, and accelerated internal carbon buildup in the engine.
Last time I changed the engine oil, I accidentally overfilled it. After driving for a few days, the engine noise became noticeably louder, and I could clearly feel the car struggling during acceleration. Upon inspection, I learned that excessive oil causes the crankshaft to churn in the oil, creating bubbles, which actually reduces lubrication. Over time, parts like bearing shells or piston rings wear out faster, and oil leaks may even occur, costing hundreds to repair. The most dangerous part is that oil bubbles can cause internal overheating or oil starvation, potentially leading to sudden engine failure on the highway. Since then, I always check the dipstick myself during oil changes to ensure the level is between the min and max marks, avoiding unnecessary trouble. Remember, the right amount of oil is key to protecting the engine—too much can become a hazard.
Excessive engine oil is no trivial matter and poses significant threats to driving safety. High crankcase pressure can easily lead to oil seal rupture and leakage, or insufficient lubrication causing direct metal friction, rapid temperature rise, smoking, and even a high risk of fire. Foam mixed into the oil circuit can prevent the oil pump from drawing enough oil, leading to sudden shaking or stalling at high speeds, which is terrifying. Additionally, blue smoke from the exhaust is a sign of burning engine oil, which pollutes the environment and violates regulations. I must say that regularly checking the oil dipstick is best done when the engine is cold, maintaining the right amount of oil can save money and prevent accidents. Safety first—no room for carelessness.
