I live in Denmark, and now and then when I refuel my car, the pump's at the station automatically stops, when the tank is full, it makes no difference weather my tank is half full or almost empty. What kind of mechanics are in play? - Please be specific, thank you.
Other - Cars & Transportation - 2 Answers
Random Answers, Critics, Comments, Opinions :
1 :
vacuum/when the car fills the vac stops and wham pump shuts off
2 :
atmospheric pressure is all, when the tank is being filled the vapors rise, and come out the tube that goes from the tank to your carbody. when you are almost full there is only so much room as liquids resist compression, when that pressure reaches a certain point, it stops, now you can press the gas pump a few more times and it will go for a bit and stop, this is what they call topping off, however it is not reccommended. its bassically filling your tank so much that the tube to teh body is filling up, leaving no room for the vapors in the tank, that is bad. and topping off can cause spills, which are bad for the environment. if you look closely at the nozzel and andle you will see a small hole, this is where the pressures are read.
Read more discussions :
