I'll always try and use truck pumps, much faster. We have a cash back Visa, but only if used at the pump. It has been all over the place as far as how the dollar amount goes, and sometimes it doesn't even require any proof of ownership of the card. Only once has it happened where I could not swipe the card more than once. The biggest problem I have found is in Oregon at the truck lanes. They want a tax number, which I don't have, PITA. I have noticed that flying j, loves and pilot are not the cheapest, but I'll pay the extra for the faster pump and easier access.