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  1. #1
    Platinum Member bdog's Avatar
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    Mar 2004
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    949
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    Texas
    Tractor
    John Deere 4440

    Default Diesel truck with best MPG

    Not trying to start a brand war and don't want to get in to any aspects of the trucks other than mpg.

    Assuming the trucks (3/4 ton 4x4) are similarly equipped and stock which of the three will get the best mpg?
    1980 John Deere 4440
    2007 John Deere 322 compact track loader

  2. #2
    Veteran Member Raspy's Avatar
    Join Date
    Dec 2006
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    1,022
    Location
    Northern Nevada
    Tractor
    NH TC29DA Bolens G14 Skytrac 5028 Dodge Cummins Jeep Rubicon Grizzly 700

    Default Re: Diesel truck with best MPG

    It's not just the brand, it's also the year.

    Cummins is notorious for good mileage. The early '04 models are better than the later ones through '07. The new 6.7 model is worse yet because of timing, EGR and DPF equipment for emissions.

    Late Fords are bad too and Ford has called back some of them for re-programming which makes them worse.

    Specific mileage claims are very hard to verify because people want to believe the computer or only give the mileage figures for a short run or while coasting down hill, etc.

    Long term use records or a full tank round trip calculation, at the minimum, gives more accuracy.

    You are likely to hear all sorts of wild claims by opening this can of worms. prepare for a lot of stories.
    John

    I only exaggerate enough to compensate for being taken with a grain of salt.

  3. #3
    Gold Member
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    Jul 2011
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    314
    Location
    SE Louisiana

    Default Re: Diesel truck with best MPG

    I don't know if any others are better, but I can tell you what mine gets. (09 Ford F250, crew cab, 2wd, short bed, completely stock, 3.55 rear end gears) I get between 20 and 21 on the highway with the cruise set at 70mph. That has been figured several times during several trips. The in dash computer tells me I am getting 23 on those trips. I agree you may get some people claiming huge numbers. My opinion is they are either full of bull or modified trucks.

  4. #4
    Bronze Member
    Join Date
    Nov 2008
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    74
    Location
    Kerrville, TX
    Tractor
    2006 Kubota L39 TLB, Bobcat S160 Skid Steer

    Default Re: Diesel truck with best MPG

    My stock 2004 GMC 3/4 ton 4x4 with a 6.6L Duramax with 70K miles gets an average 18 mpg. 75% is town and 25% is highway. About 5% of my miles are pulling a 12.5k tandem axle trailer with a L39 on its back. Before the GMC, I had a 1998 Dodge with a Cummins and I got around 21 mpg.

  5. #5
    Platinum Member bdog's Avatar
    Join Date
    Mar 2004
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    949
    Location
    Texas
    Tractor
    John Deere 4440

    Default Re: Diesel truck with best MPG

    I have owned all three brands but they were older models, and I had bigger tires on them, etc. so my mileage experiences were not very consistent. I want to buy one now and and I know the new emissions crap is hurting the mpg. I know I drove a 2008 F-350 4x4 crew cab diesel and it was getting 13mpg empty. It was brand new less than 1000 miles so maybe it was not broken in yet I don't know but I sure don't want to drop 50k on a truck and get crap mileage.
    1980 John Deere 4440
    2007 John Deere 322 compact track loader

  6. #6
    Super Member
    Join Date
    Apr 2006
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    6,470
    Location
    Wise county Texas
    Tractor
    Kioti DK 35 now

    Default Re: Diesel truck with best MPG

    Quote Originally Posted by bdog View Post
    I have owned all three brands but they were older models, and I had bigger tires on them, etc. so my mileage experiences were not very consistent. I want to buy one now and and I know the new emissions crap is hurting the mpg. I know I drove a 2008 F-350 4x4 crew cab diesel and it was getting 13mpg empty. It was brand new less than 1000 miles so maybe it was not broken in yet I don't know but I sure don't want to drop 50k on a truck and get crap mileage.
    I dont think you'll find the "best of both worlds" with a truck built to "work"
    We have 3 GMC 1-ton dually's same model but years 08-10. the 08 is averaging around 9 with a loaded trailer, my 09 gets around 12-13 with 12# trailer, go figure. Had a Ford 250 and GMC 2500, the GMC did much better up to 22.

    I dont buy into the posted mileage on new vehicles, since the testing is seriously flawed. To many variables between options and driving styles I think.
    Dennis


    "Winter 2013 a majority of the country is setting new cold records, Colorado is setting new record HIGH's"

    "If at first you don't succeed, skydiving is not for you."

  7. #7
    Elite Member
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    Apr 2009
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    adirondacks

    Default Re: Diesel truck with best MPG

    mine gets 22mpg and can haul 5 ton on the back, I won't mention the brand, brand wars.

  8. #8
    Gold Member burnieman's Avatar
    Join Date
    Feb 2012
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    484
    Location
    Trinity County California
    Tractor
    John Deere 955 With 70a Loader and 7 backhoe, John Deere 110 Backhoe

    Default

    I own a 2001 dodge 2500 4x4, 6 speed manual shift. It has a power chip that puts it 90 HP over stock. I have land in the mountains about 4 hours away from my house and I consistently get up to 24 mpg. My wife drives a ford power stroke that gets about 17 on the same trip. The Ford is more comfortable and quieter but we always seem to take the Dodge. The truck has an oversized turbo, no cat, 4 inch exhaust, injectors, winch, air bags, jake brake, aux fuel tank, lift, reunel bumpers, mag hytec rear end, etc. My Dodge kicks my Fords *** all day long. Why would you keep a truck stock?
    Attached Thumbnails Attached Thumbnails -image-206273528-jpg  
    Last edited by burnieman; 06-06-2012 at 05:09 PM.

  9. #9
    Silver Member
    Join Date
    Nov 2011
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    174
    Location
    canton, nc
    Tractor
    kubota B1750HST4x4

    Default Re: Diesel truck with best MPG

    my 97 dodge cummins also got pretty good mpgs...auto, single rear axle, 3.55 gears I think, and i always got about 20mpg

    If I was trying I could get better

    Stock turbo, but had the timing altered, fuel pressure increased, 4 inch exhaust....

  10. #10
    Elite Member Dmace's Avatar
    Join Date
    Oct 2005
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    3,838
    Location
    Wakefield, NH
    Tractor
    Kioti CK20 HST

    Default

    Pre-2007 = Cummins RAM all the way. After that, they all stink...

    I would love to take a new diesel truck from any manufacturer making 800lb-ft and de-tune it to the 5-600 needed. I bet it would get 25+ mpg's WITH the emissions stuff.
    Derek
    Kioti CK20HST
    KL120 FEL // KB2365 BH // 60" JRW 3ph snowblower // 48" HD Boxblade
    Sims-Cab Depot heated cab
    Quote Originally Posted by DiamondPilot
    Now it's time for Ford and GM to step up

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