Can You Leave Car Running While Pumping Gas?
You should not leave your car running while pumping gas. While the risk of fire or explosion is extremely low with modern vehicles, it is illegal in most states and a safety precaution worth taking. The running engine creates heat and potential ignition sources. Turn off the engine, stay near the pump, and avoid re-entering your vehicle.
Key Takeaways
- Gasoline vapors are flammable and can ignite if they reach an ignition source.
- Electric vehicles do not have this concern as they do not use gasoline.
- Diesel is less volatile than gasoline but the same rules typically apply.
Explanation
Gasoline vapors are flammable and can ignite if they reach an ignition source. A running engine generates heat and electrical activity that could theoretically ignite vapors. Modern fuel systems are well-sealed and vapor recovery systems at pumps minimize the risk, but the precaution remains standard.
Static electricity is actually a bigger concern than running engines. Getting in and out of your car while fueling can build up static charge, which can discharge as a spark when you touch the pump. This is why you should stay outside the vehicle and touch a metal surface before touching the nozzle.
Beyond safety, leaving a car running while pumping gas is illegal in most US states and can result in fines. Gas stations may refuse service or stop the pump remotely. It also wastes fuel and produces unnecessary emissions. The few seconds saved are not worth the risks.
Things to Know
- Electric vehicles do not have this concern as they do not use gasoline.
- Diesel is less volatile than gasoline but the same rules typically apply.
- In extreme cold, some people idle to maintain heat, but this is still not recommended.