Should the Engine Be Turned Off When Refueling a Car?

[VonAlina]

When refueling a car, the engine should be turned off. This is because while the engine is running, the vehicle's electrical circuits and systems are powered, with electric current flowing. If a short circuit or leakage occurs at this moment, it can easily trigger a fire. Additionally, during refueling, the concentration of fuel vapor mixed with air around the fuel tank increases correspondingly. When the fuel vapor concentration reaches a certain level, any spark generated by the running car engine could ignite and cause an explosion. Moreover, while the engine is operating, the car's exhaust pipe continuously emits exhaust gases, often accompanied by sparks, which also poses a threat to the safety of the gas station. Therefore, it is strictly prohibited to let the fuel nozzle come into contact with the car's exhaust pipe while refueling at a gas station.