Oakman "Diesel only at the truck pumps, but most Flying J's have RV pumps off to the side that dispense both gas and diesel."
Only problem with these and it has happened to me twice this year, is the rigs pull into them, get their gas or diesel and then go inside. Leaving their rigs at the pumps. And it has been quite a while before they come back out to move their rigs. It is frustrating to have to sit there and wait. Whenever possible after filling up I always move my RV. Then go inside.