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glodeke's avatar
glodeke
Explorer
Sep 10, 2015

auxiliary fuel tank for diesel truck

We have a GMC 2500 with a stock 36 gallon fuel tank. As we are planning a cross-county trip soon, what are thoughts/opinions on installing an auxiliary tank. Does anyone have experience with the kind you install in the bed of the truck? Any comments would be helpful. We pull a 27' fifth wheel. Thanks!

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  • TXiceman's avatar
    TXiceman
    Explorer II
    Sep 10, 2015
    RDS makes a series of aux tanks and some with toolboxes. I have a 40 gallon in my truck. With your 3/4 ton truck you need to be sure your GVWR and rear axle GAWR are sufficient to carry the added fuel plus the trailer pin weight,

    Ken

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