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  1. #1
    Join Date
    Dec 2009
    Location
    Indiana (The land of no snow)
    Posts
    277

    Default Gas MPG for '99 Chevy 3500 Dually w/454 7.4L

    I just bought low mile, mint condition 1999 Chevy 3500 Crew Cab 4x4 Dually with the 7.4 liter 454 engine off of a friends parents. Here's my question... What kind of gas milage should I expect from this truck. My guess is anywhere from 8-12 MPG. I'm wondering about towing mileage versus non-towing mileage too. Any thoughts?

  2. #2
    Join Date
    Dec 2009
    Location
    Waterford/Sidnaw, Mi.
    Posts
    1,855

    Default

    Usually, when one buys a truck like that, gas mileage is something that you probably don't want to think about.

    You're probably right on with your estimate though.

  3. #3
    Join Date
    Dec 2009
    Location
    Benton Harbor MI
    Posts
    148

    Default

    no difference towing or not towing had similar truck for business 10 miles a gallon unless driving over seventy mph.

  4. #4
    Join Date
    Dec 2009
    Location
    Watertown WI
    Posts
    1,067

    Default

    Quote Originally Posted by skeedoo View Post
    I just bought low mile, mint condition 1999 Chevy 3500 Crew Cab 4x4 Dually with the 7.4 liter 454 engine off of a friends parents. Here's my question... What kind of gas milage should I expect from this truck. My guess is anywhere from 8-12 MPG. I'm wondering about towing mileage versus non-towing mileage too. Any thoughts?
    Jeez dont bring that thing to WI, I need gas left for my sleds....haha j/k I have a v-10 class A motorhome that gets 5-8 mpgs depending on the winds.

  5. #5
    Join Date
    Dec 2009
    Location
    Greenland, Mi
    Posts
    5,570

    Default

    Quote Originally Posted by skeedoo View Post
    I just bought low mile, mint condition 1999 Chevy 3500 Crew Cab 4x4 Dually with the 7.4 liter 454 engine off of a friends parents. Here's my question... What kind of gas milage should I expect from this truck. My guess is anywhere from 8-12 MPG. I'm wondering about towing mileage versus non-towing mileage too. Any thoughts?

    a 99 in mint, post a pic, love to see that. I always liked those rigs

  6. #6
    Join Date
    Dec 2009
    Location
    West of Indianapolis Indiana
    Posts
    371

    Default

    We towed a dozer with a 1 ton 454 from Michigan to Central Indiana one year and we never passed a gas station! I'm thinking 5 maybe 6mpg if your going down hill. I could only get 9 out of my Hemi, no way are you getting 11-12. I switched over and got a Cummins and get 21-22 highway and when I am towing to michigan with a 33 foot 4 place I got 14.

  7. #7
    Join Date
    Dec 2009
    Location
    Twin Cities
    Posts
    18

    Default

    There's a reason why those rigs have a 43 gal gas tank. If possible, they'd be equiped for in transit fueling similiar to fighter jets :-)

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