- Incorrectly routed or misfiring fuel injectors, dumping fuel directly into the crankcase.
- A leaky valve, which allows fuel to pass from the combustion chamber to the crankcase.
- A stuck open fuel pressure regulator, which allows fuel to flow through the return line and into the crankcase.
If you notice the smell of gas in your oil, it's important to take these steps:
1. Stop driving your car immediately and have it towed to a mechanic.
2. Tell your mechanic that the oil smells like gas.
3. Have your mechanic investigate the cause of this issue and make the necessary repairs.