24 feet motorhome - 55 gl. fuel tank

I drive a 'C' and pull a Jeep toad four down. So just any gas station won't work for me. I can't back up more than a foot before the front wheels on the Jeep turn all the way to their stops. And I have to find a station with pumps parallel to the road and without a low overhang.
So I start looking when I get to half a tank. By that time, my personal tank is full of coffee anyway. Might as well use the station's holding tank.