My unofficial observation is only 25% of gasoline stations are RV friendly when pulling a 35' trailer. Identifying those stations on the fly is the challenge. Just pulling off the interstate without any prior knowledge or scouting is not good enough. Just rolling the dice leads to waisting time and headache.
Let's face it we are just talking finding a gas station.
Sure you can maneuver and wiggle through lots of gas stations.
Some are manageable until that random car gets in the way.
But the fact remains, there are no dedicated fully clear gas islands like there are diesel islands.
Many convenience stores now have large dedicated diesel islands to accomodate over sized vehicles. These islands are often seperate from the other filling areas. Then there are truckstops. While I agree truckstops can have there own set of issues, access to the diesel pumps isn't one of them.
At the end of the day diesel is much easier to accesss than gas when traveling the interstates with a large RV in tow. I'm not saying it's impossible to travel in a gasser. But I am saying it will take more efforrt to find and manuever through a gasoline station vs. a diesel station.
My own personall preference is that access is more important than other factors when filling with the trailer attached. Acess is more important than price, Its more impprtant than other amenities available. Access is the most important priority.
Yes I try to fill without the trailer if possible. I also have a Enduraplas Auxilary tank. I seldom need to fill while attached but when I do, I'm fortunate in that I need to find diesel vs. gas.