Everytime I travel to the US its been a pain to buy gas, when you try to pay at the pump it always asks for a 5 digit zip code or the pump won't accept the card forcing you to go into the store and pre-pay or they may hold your card.
Well, I found out today that if you enter the 3 numbers in your postal code followed by "00" for a total of 5 numeric digits the pump will now accept the card.
Is this common knowledge and I've been living under a rock or maybe sniffed too much gas?