Originally Posted by Trail bandit
Not heard of the zip code thing. Midwest seems to be just pin code and pump. I remember having trouble with Ozzie cards though. More often than not they would not work at pump but would work at cashier. Also, I'd find debit card would work if I pushed credit.
Might make sense to get one of those prepaid debit cards that way you have a US based account for travels. Treat it like a credit card at the pump or something like that. I don't know just farting out ideas...