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What would happen if you put gas in your car while it’s on?

18 Answers

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  • 1 month ago

    I would listen to 'thebax' - he's probably the most knowledgeable one here.

  • hart
    Lv 6
    1 month ago

    the gas fumes can blow your car

  • ?
    Lv 6
    1 month ago

    Refueling a running vehicle increases the chances of gas vapors coming into contact with heat or electricity. Anytime you top off your gas tank, there's a chance the gas pump's automatic stop mechanism will fail, causing your gas tank to overflow and spatter gasoline onto the ground.

  • 1 month ago

    Nothing people do it here all the time.

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  • Anonymous
    1 month ago

    You can NEVER BUY GAS THERE AGAIN.  They will remember you.

  • Phil M
    Lv 7
    1 month ago

    Your tank would fill up. But the risk of fire goes way up.

  • 1 month ago

    The charcoal canister vent valve doesn't open and gasoline can back up the filler tube and get into the charcoal canister ruining it. Symptoms of this happening are hot restarts and vent valve codes.

  • ?
    Lv 7
    1 month ago

    This was banned a long time ago, when there were often stray sparks in the ignition or electrical system if it was running. Fuel vapor plus a spark can mean - boom!  It's far less likely these days, but no-one has considered it appropriate to repeal the requirement.  It's better to be unnecessarily cautious than risk it. 

    Plus there's the likelihood now that the car will detect the cap being missing and throw that up as a fault.

  • ?
    Lv 5
    1 month ago

    Refueling a running vehicle increases the chances of gas vapors coming into contact with heat or electricity. Anytime you top off your gas tank, there's a chance the gas pump's automatic stop mechanism will fail, causing your gas tank to overflow and spatter gasoline onto the ground.

  • Ron
    Lv 7
    1 month ago

    An opportunist would steal your car because you left it running while standing in the back

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