Do you have the problem of oil stains around your oil filler cap?
It may not just be a leaky cap that is the problem.
Many have tried replacing the cap without any resolution to the leaking oil through the filler cap.
The problem may be built up pressure within the engine due to a blocked engine breather (crankcase ventilation) air passage.
 |
Leaky filler cap? Or other issues? |
The engine releases built up pressure from the evaporated fumes via the crankcase ventilation hole.
This is connected to the engine breather hose that routes these fumes back to the air filter box for combustion again in the engine.
If the engine breather outlet is blocked, pressure built up is unable to escape and thus the only other outlet will be via the oil filler hole, causing the oil to stain the area around the cap.