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ghsebldr's avatar
ghsebldr
Explorer
Jun 17, 2014

Gas gauge reads full

I was trying to run my 2004 Winnebago 32g to almost empty. After a couple of trips this spring I had lost track of my gas use so decided to let it get almost empty then fill up just to see how the gauge worked and how many miles I would get to a quarter tank then a half tank and so on. Sitting on what I thought was just past empty it only took 40 gallons. The info on the Winn. site states 55 gallon fuel capacity. This is a f-450 v-10 class C. Anyone else notice this on their similar RV. thanks
Class C
  • Golden_HVAC's avatar
    Golden_HVAC
    Explorer
    Jun 17, 2014
    Ford put two fuel tanks into their E-350 and E-450 chassis.

    Winnebago might have selected the smaller tank in order to have more cargo capacity before reaching the GVWR.

    I would suggest measure the tank, and then find out how many cubic feet it is, then what gallon capacity that works out to. The 40 gallon tank will have outside dimensions that indicate it can hold 40 gallons of fuel and 8 gallons of vapor, or 48 total.

    The 55 gallon tank should hold about 55 gallons + 11 gallons of vapor, or about 66 total. It still might measure out as about 70 gallons.

    Fred.

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