around here in Connecticut most of the gas stations require you to "pay first" before you pump your fuel. However, if you go to the diesel pump it will start right up without having to pay the cashier first! We must be an honest and trustworthy bunch of drivers! Perhaps they figure with a loud truck you can't sneak off without paying... ... . (Of course in these places the diesel pump is seperate from the others and dosen't have a credit card slot in it)