Fuel mileage dodge diesels

Discussion in 'Trucks and Trailers' started by OhioMowerGuy, May 28, 2008.

  1. OhioMowerGuy

    OhioMowerGuy LawnSite Senior Member
    Posts: 319

    What are you cummins guys getting for fuel mileage city, highway, and towing?
     
  2. T.E.

    T.E. LawnSite Senior Member
    Posts: 799

    Hwy & City towing 12-13 MPG
    Hwy non towing 23.0
    City non towing 18.0-19.0
     
  3. AllanP

    AllanP LawnSite Member
    Posts: 19

    12 - 14 City Towing and around 21 - 22 Highway.
    Mine is a '99 3500 (Beast) :)
     
  4. TandM

    TandM LawnSite Senior Member
    from south
    Posts: 772

    2007 dodge 3500 double cab longbed dually 4x4.
    City non towing: 18-19
    Highway no tow: 22-24
    Towing a 21000 trailer 12-14 sometimes more.
    Cummins!!!!!!!!!!!!!!!!!
     
  5. Az Gardener

    Az Gardener LawnSite Gold Member
    Posts: 3,899

    04 2500 crew cab 2wd just turned 50-K and broke through the 19 mpg barrier. City driving, no towing, avg. 500 lb cargo. Last time I towed it was about 14 city, when I am running the A/C I loose another mpg.
     
  6. Grassmechanic

    Grassmechanic LawnSite Silver Member
    Posts: 2,697

    Hi-way - 21-22
    city - 18-20
    towing 16-18
     
  7. nosparkplugs

    nosparkplugs LawnSite Gold Member
    Posts: 3,445

    13MPG average towing 13,500GTWR city with the air conditioning on max:)
    16MPG average towing interstate.

    I can never get a true non-towing MPG average always towing something with each tank of diesel. If i had to guess it would be maybe max 18MPG


    I am going to call BS on anything over 21MPG; because Diesel Power magazine has done a MAX MPG diesel challenge yearly, with diesel truck owners all over the county entering. The winner had over 10,000 dollars in engine modifications; which got a regular cab 2wd Durmax 21MPG no trailer highway. The overhead computers are not that accurate, Diesel Power has tested those what a joke.
     
  8. Az Gardener

    Az Gardener LawnSite Gold Member
    Posts: 3,899

    My computer display always reads at least 1 mpg less than actual.
     
  9. SpruceLandscape

    SpruceLandscape LawnSite Senior Member
    from ohio
    Posts: 502

    Actual numbers, not computer display on 2006 2500 quadcab 4x4 auto trans with dump insert:
    highway under 70mph: 20-22 (going slower than 60 will also decrease your fuel mileage... WEIRD)
    City empty: 17 (depending on idle time)
    Towing city (with 5k lbs. on trailer and full load of mulch or grass clippings): 11-15 depending on how many stops and again, idle time.
    Towing highway: No idea, don't do enough of it.
    Average plowing in winter with dump insert still installed and 1050 lb. Boss plow: 12
     
  10. pclawncare

    pclawncare LawnSite Senior Member
    Posts: 991

    12v 1995 20-21 highway 16-17 in own
     

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