Fueling up diesel? - LOVE being able to pull straight in and out of Truck Stops. Yes, some do have spilled diesel but not all. Gas or diesel - try and find the end spots at gas stations as they usually give more flexibility/room for access. If I can't see a way out, I'm not going in! Watch that tail swing!
Grub - we generally eat in the RV or find a large shopping mall with a good size parking lot to park the RV. Walmart parking lots are good places to stop to eat in the RV and then grab anything you might need. One of the joys of the RV is not spending a lot of money on food for every meal but we do like lunch out. Rest stops, truck stop parking, good pull outs, and any large parking lot all work well for dining in. You will get comfortable and good at spotting safe places to pull in for a brief stop. Happy Trails.