Diesel prices - truck stops vs regular gas stations

We either fuel at Sam's Club where there's lots of room, the DW can do the grocery shopping while I fuel and their price is a lot cheaper than the truck stops.

Or we fuel a Kroger's / Fred Meyers. You 10 cents off per gallon for every $100 you buy in the store. Average month is $300 or 30 cents off per gallon.

We only fill up at a truck stop once or twice a year when we pull in to sleep.

Bill