I dislike the truck stops because they're too busy, cumbersome to use and too expensive even with six cents or whatever off. I can always find a better price on diesel.
Much prefer going to Sam's Club or a Kroger's / Fred Meyers store. Sam's has huge parking lots, plenty of room to get our 40' DP with toad in and out, then park and go grocery shopping at Sam's or WalMart. We do enough shopping at a Kroger's store that we always get 20 - 30 cents off per gallon. Same thing, shop an then fill up.
Bill