That's easy, just bring a thunder jug. Talk about a range extender.I used to do the drive from Virginia to Maine and back often when I was in the Navy. I made a rule not to stop to eat, drink or piss until the tank got below a 1/4. In the 94 Z/28 and 86 lifted K5 blazer it wasn’t an issue. The 99 F-250
Diesel that got 500 miles to a tank effing hurt.