I have a 33' 5th wheel being towed by an F350 diesel. I always fill up in the auto lanes but it can be a real challenge at times. If I go to a flyin J or a Pilot station can I fill up where the truc...
If you have had a previous experience where the pump wouldn't fit your truck you must have the small opening. If that's the case you could not use the truck lanes. I would look into changing the fill neck on the truck. I would find it very un-handy to not be able to get diesel from big truck pumps. Both my Chevy diesels have had filler necks big enough to do it.