Should I Turn My Car Off?

When It Makes Sense

• Good fit: If you drive a conventional gasoline or diesel vehicle with a non‑start‑stop engine, turning the engine off before refueling aligns with most fuel‑station safety policies and reduces the risk of fuel‑vapour ignition.
• Good fit: When you are at a station that explicitly requires engines to be off, or when you are refueling in a residential garage where a spark could ignite vapours inside an enclosed space.

When You Should Avoid It

• Warning sign: If you are using a hybrid or electric‑assist vehicle that automatically restarts the engine when the accelerator is pressed, shutting it off may interfere with the vehicle’s safety systems; follow the manufacturer’s guidance.
• Warning sign: When you need the engine or auxiliary power for an essential function (e.g., running a medical device, powering a compressor on a worksite), but only if you can ensure proper ventilation and there is no open flame.

Pros and Cons

Pros

• Reduces the chance that a spark from the ignition system could ignite gasoline vapours, which is the leading cause of pump‑related fires.
• Decreases fuel consumption and emissions during the few minutes you spend at the pump.

Cons

• If you need power for a device or climate control, turning the engine off removes that source until you restart.
• Some modern vehicles with automatic start‑stop may restart unexpectedly, potentially confusing the driver or causing a brief loss of power to accessories.

Decision Checklist

• Is my vehicle a conventional engine that can be safely shut off without affecting essential systems?
• Does the fuel station have a posted rule requiring engines to be off?
• Do I need any power from the car while pumping, and can I obtain it safely elsewhere (e.g., a portable charger)?

Alternatives to Consider

If you must keep the engine running, consider using a fuel‑pump–compatible ground‑ing strap, ensure the vehicle is well‑ventilated, and stay clear of the nozzle while fueling. For electric‑only vehicles, simply power down the high‑voltage system according to the owner’s manual. In a work‑site setting, use a portable generator or battery‑powered tool instead of the car’s engine.

Final Recommendation

For the majority of drivers, turning the car off while pumping gas is the safest and most environmentally friendly practice. Exceptions exist for specific hybrids, work‑site power needs, or when the station explicitly permits running the engine. Always follow station signage and the vehicle manufacturer’s recommendations, and consult a qualified mechanic or safety professional if you are unsure.