_- Damaged cylinder walls:_ If the cylinder walls are damaged, gasoline can also leak into the oil sump.
_- Faulty fuel injector:_ A faulty fuel injector can cause gasoline to be sprayed directly into the oil sump.
_- Clogged fuel return line:_ A clogged fuel return line can cause gasoline to back up into the oil sump.
_- Excessive fuel pressure:_ Excessive fuel pressure can also cause gasoline to leak into the oil sump.**
