I have never turned my vehicle off while pumping gas in my life and have yet to have an issue. Especially coming from a Northern state where it gets pretty cold you see a lot of people doing the same thing. What is the potential risk or is it all just a myth?
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For one, having the engine running while the gas cap is off messes with the pressure in the engine. So even putting aside any safety stuff, it’s not great.
For something far more important, you are deliberately firing sparks in the vicinity of open gasoline. I don’t really understand how you *don’t* see the risk inherent in that.
But just like a lot of stupid and dangerous things, it only goes wrong when some other thing goes wrong, like for example, holding the spray handle down when you take it out of the tank, where it hits a hot running engine, and the vapors catch fire.
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