What to Do When the Oil Dipstick Smells Like Gasoline?
1 Answers
It should be repaired as soon as possible. The reasons for the gasoline smell in the oil are as follows: 1. The lubricating oil has not been replaced for a long time, resulting in a decrease in the oil film thickness and insufficient piston lubrication. 2. There is damage on the cylinder wall, leading to gas blow-by. 3. The engine has been used continuously for too long, causing the clearance between the piston and cylinder wall to increase. 4. Frequent short-distance driving without warming up the engine, resulting in insufficient time for gasoline to evaporate. Detailed analysis of why the oil smells like gasoline: 1. Long-term failure to replace the lubricating oil leads to a decrease in the oil film thickness and insufficient piston lubrication. Damage on the cylinder wall causes gas blow-by. 2. It may be due to frequent short-distance driving combined with a large amount of cold-start fuel injection, which can easily enter the oil. Additionally, if the car is stopped without sufficient warm-up, the gasoline inside does not have enough time to evaporate. 3. The engine has been used continuously for too long, causing the clearance between the piston and cylinder wall to increase. The only place where engine oil and gasoline come into contact is the combustion chamber. Due to uneven air-fuel mixture and excessive mixture concentration, the pressure in the combustion chamber is always greater than that in the crankcase, causing a small amount of the mixture to enter the crankcase.