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...
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I have a 63 gal aux tank on my Ram and have not seen any change in fuel mpg. There are times that I save as much as 50 cents per gal. I can travel over 1000 miles before I need fuel.
