Semi- related... do most Class A's have "open" fuel fillers? Or do they sometimes have the restriction plates that not all fuel pump nozzles can fit in?
I'm just asking, because years ago we were pulling with a 2000 F250 7.3 and went to fill up in New Jersey - and the diesel pump nozzle wouldn't really fit. The attendant came over and said it was designed for larger vehicles, but he showed me to carefully hold it in the fill pipe to fill my tank.
So if anyone runs into this, you can fill your vehicle, just be careful and take your time.