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  1. #1
    Jr. Apprentice
    Join Date
    Jun 2013
    Location
    Greensboro Area, NC
    Posts
    13

    Default Aux tank in 1500HD - I need more gas!

    I need more gas in my truck... GM put one piss-ant sized tank in these. Anybody done a aux tank with gas? I'm thinking 40-60 gallons in the bed. Probably a fuel tank/toolbox combo. Use a stock or generic style sending unit/pump combo and wire it to a gauge and timer in the cab. I can make the fitting to tie a fuel line to the fill neck hose so I can pump it to the stock tank. My biggest concern is the venting or tying the vent to the evap system in the truck.
    Anybody tried it?
    2003 Chevy 1500HD 4x4

  2. #2

    Default

    Idk what the laws are NC but you might want to check before doing this. Gasoline has an extremely different flash point then diesel. It's much lower and because of this it's usually illegal to have an aux tank in the bed. Idk man I'd look into it being legal befor you move forward. I was told a guy got some serious fine. Good luck though.

  3. #3

    Default

    Quote Originally Posted by toyracer83 View Post
    I need more gas in my truck... GM put one piss-ant sized tank in these. Anybody done a aux tank with gas? I'm thinking 40-60 gallons in the bed. Probably a fuel tank/toolbox combo. Use a stock or generic style sending unit/pump combo and wire it to a gauge and timer in the cab. I can make the fitting to tie a fuel line to the fill neck hose so I can pump it to the stock tank. My biggest concern is the venting or tying the vent to the evap system in the truck.
    Anybody tried it?
    A friend of mine has gas and diesel dispensing tanks on his property(gravity fed). He has someone come out and fill the tanks up every once in a while. This might be an option for you.

    2013 Silverado LTZ White Diamond Crew Cab


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  4. #4
    Jr. Apprentice
    Join Date
    Jun 2013
    Location
    Greensboro Area, NC
    Posts
    13

    Default

    I just have to stop for gas too often. Specially on trips. If I'm towing it's really bad. I got spoiled with the 42 gallon tank on my old diesel burb.
    2003 Chevy 1500HD 4x4

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