[Barefoot Bill]

I put a 60 gallon aux tank in my short bed F350. I like being able to go 2 days in case we don't find a convenient place to refill. We usually unhitch every couple days and can look for cheaper diesel at a smaller station. Mine is gravity fill with a manual valve at the bottom of the tank. It would be nice to leave the valve open all the time but have learned the hard way that's not a good idea for several reasons.