What damage does refueling without turning off the engine cause to the car?

[LeAlice]

Refueling without turning off the engine generally does not cause any adverse consequences to the vehicle, but it poses certain safety hazards. The vehicle's electrical equipment remains operational, and the engine is running at high temperatures. If there is any electrical leakage, it could potentially lead to a fire. Therefore, when refueling the car, it is essential to remember to turn off the engine and power, and only restart the vehicle after refueling is complete and the fuel tank cap is securely closed. Below is more information on refueling precautions: 1. Never refuel the car before turning off the engine. 2. If the attendant has not turned off the fuel nozzle, the driver must never start the car, as this could easily cause a fire. 3. It is best not to refuel during thunderstorms. This is also a safety consideration to prevent lightning strikes and avoid fires. Since automotive fuel is highly flammable, during refueling, flammable fuel vapors can easily disperse into the surrounding air. If struck by lightning, the consequences would be unimaginable.