What happens if you refuel without turning off the engine?
2 Answers
If you don't turn off the engine while refueling, both the engine and electric motor will continue to operate, generating electrical currents during the process. In case of a circuit leak, this could potentially cause an explosion. There are four key precautions to observe when refueling your car: 1. Avoid overfilling: In hot summer temperatures, gasoline expands due to thermal expansion. If the tank is overfilled, gasoline may overflow through the vent hole, which can lead to spontaneous combustion upon contact with open flames. Additionally, gasoline dripping from the vent hole can corrode the car body. 2. Try not to wait until the fuel light comes on: It's advisable to refuel when the gauge shows one-quarter of the tank remaining. Frequently waiting until the fuel light comes on can result in poor lubrication and cooling of the fuel pump, shortening its lifespan. 3. Choose the right time to refuel: Avoid refueling at midday. Due to thermal expansion, gasoline volume increases with rising temperatures and decreases when temperatures drop. 4. Don't fill up the tank during the first refuel of a new car: This may cause sensor failure and lead to inaccurate fuel gauge readings.
I've worked at gas stations for many years and seen plenty of drivers making the foolish mistake of refueling without turning off their engines. This is extremely dangerous - when the engine is running, sparks can easily occur inside, and if even a little gasoline vapor leaks out, it can ignite and cause an explosion upon contact. Back when I was on duty at the Xijiao gas station, a young guy didn't turn off his engine. As soon as the fuel nozzle was inserted, smoke started coming from under the car. Fortunately, someone quickly grabbed the nearby fire extinguisher to prevent a major disaster. Besides fire hazards, refueling with the engine running can also damage the fuel system. Prolonged exposure can cause the fuel pump to overheat and fail, costing hundreds of dollars to repair. Safety first! Next time before refueling, be sure to turn off the engine, engage the parking brake, and wait a few minutes before opening the fuel cap. Developing this good habit can save lives and repair costs.
