I have been using Flying J for 15 years as dedicated as I can be . On my last trip 5000 miles I had to use whatever diesel stations available .they were cheaper ,faster ,They would just turn the pump ...
I have a gasser. Never use anything other than Costco if they are around. Easy in, easy out. Not like FJ where you have to fight autos parked at the building to get out of the fuel lanes.