Crossing the country these past 2 weeks, we discovered that we can use the truck pumps for diesel fuel and even though we used our credit card, we still paid the cash price. This is true!! The only catch is you must have a Flying J RV REWARDS card -- not just a plain Flying J card. Also, the 1 cent per gallon discount is only good for the first 300 gallons of fuel each month. However, if you and your spouse each have a Flying J Rewards Card, then you can get it on 600 gallons per month. Hopefully, you won't use that much within a single month. All this was explained to me when I first went to the RV pumps and later asked about the truck pumps. Later I didn't receive my 1 cent discount and asked why. That's when I learned about the 300 gallon/month limit. Always ask for an explanation of your receipt -- one station even had lucky numbers! If your receipt matched the lucky number, your fuel would be free. Guess what!! Mine wasn't.
Happy Traveling,
Jay & Donna Blumenthal F230605 -- now on the west coast.