Being a gaser with a small tank and lousy fuel mileage (6mpg), I have to be vigilant on my trip. I try to plan for stops that I've been to previously. But when I'm going to new places, I use the net and Google sat to help. I too start looking about 1/2 tank. I usually try for the end pump so I will have easy in and easy out. I also look to make sure I have a clear exit route before I pull in. My TV and TT are 45', so backing out will be my last option. I use both truck stops and gas stations.
Steve and Marlene and 2 Furry Kids. LB (Maltese) Rocky (Border Terrier)
2013 Coachmen Catalina 25RKS 2006 Nissan Titan Crew Cab