Submitted by logan0921 t3_z4vkza in explainlikeimfive
DLBaker t1_ixtm8ai wrote
Reply to comment by veemondumps in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
>Pumping fuel into your car can increase the amount of pressure in the system, which can increase the amount of pressure coming out of the fuel pump - particularly when the tank is near full.
Hell to the no it can't. Pressure is *regulated*. Also, I haven't seen a carburated vehicle sold since the '90s. That little needle valve attached to the float will regulate flow more than it will regulate pressure.
~ Signed: Old guy that's rebuilt his fair share of carburators.
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