Is It Serious If Gasoline Gets into Motorcycle Engine Oil?

[JakeMarie]

It is not serious if a small amount of gasoline gets into motorcycle engine oil. Below are the specific reasons why gasoline may enter motorcycle engine oil: Increased clearance between piston and cylinder wall: When the engine is used continuously for too long, the clearance between the piston and cylinder wall increases. Since the pressure in the combustion chamber is always greater than that in the crankcase, a small amount of air-fuel mixture enters the crankcase. Long-term failure to change the lubricating oil: This leads to a reduction in the oil film thickness of the lubricant, resulting in insufficient piston lubrication. If the cylinder wall is scratched, it can cause blow-by gas. Most cases are due to the air-fuel mixture from the combustion chamber leaking into the crankcase.