Re: Diesel fueling
After driving around a large Class A for years I can't imagine there is that much of an issue with getting fuel at Flying J (Pilot) at the RV pumps. There is more room there than in the regular auto lanes and I have seen many trailers and class A's getting fuel in the RV lanes.
The good thing about a car-trailer combo vs a Class A-car combo is that the car-trailer "bends" near the front of the combo vs the rear of the comb. This makes it much easier to make tight turns...and you can back up too.
Even in many regular gas stations you should be fine...you may have to wait a bit to get to the diesel pump and you will most likely block the pumps behind the trailer but it is what it is. Enjoy the trailer! You have much more freedom to move around and choice of camping spots with a smaller rig.
Dom's DEF Guard, Anodized Fuel and DEF tank caps, Husky interior mats, Mopar Cargo Mat, Door Sill protectors, Tires Cooper Discoverer ATP, Blue Ox Base plate, SMI Air Force One supplementary braking system, Kenwood TM-710G Ham Radio, LED rear fog lights, etc