Aux Fuel Tank is 2005 Ram 3500 Dually
I have a line of an aux fuel tank off a Kenworth and was thinking of putting it in the bed. Its 115 gallons. Some people say the added weight of the fuel negates any savings gained from buying fuel c...
Forum Discussion
A lot of RV haulers have them. The effect on mpg is minimal, 3/4 ton pickup trucks are built to haul. Wind resistance is the mpg enemy, not weight.
