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MPG

Discussion in 'Engine and Performance' started by Jedi, Nov 9, 2018.

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  1. Jedi

    Jedi Junior Member

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    Newbe Here,

    Looking at a 2018 Dodge Ram Laramie, 6.7 diesel, Crew Cab, long box, 4x4, trailer tow package with 4.10 rear diff.

    I drive conservatively 55-65 MPH, just wondering what fuel economy I might expect?

    Thanks in advance
    Jedi
     
  2. mboymopar

    mboymopar MOPAR Military

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    Welcome from west Michigan.
     
  3. Cup72

    Cup72 Junior Member

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    I have 2018 ecodiesel and it seems that my mpg has been going down a little since I bought it. My routes and usage hasn’t changed. I would of thought that when I got a little wear on the tires my mpg would improve. Any thoughts?
     
  4. Akdrmr

    Akdrmr Junior Member

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    Not sure I have any thoughts on dropping mpg other than tire pressure or fuel quality. By the way, what mpg are you getting? Any load or do you drive empty?
     
  5. Cup72

    Cup72 Junior Member

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    I’m driving empty. Also have a gator bed cover on. It’s not bad at 25.2mpg but was expecting better. Also 90% is interstate going 75mph at 2000 rpms. Thanks
     
  6. Jedi

    Jedi Junior Member

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    Thanks Cup72

    The truck I dealing on now has a 3.73 rear differential, should be a little better on fuel yet. Please confirm your truck is the 6.7 diesel and your rear end ratio.

    Thanks
    Jim
     
    Last edited: Nov 16, 2018
  7. Paul Kelley

    Paul Kelley Junior Member

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    Hi jedi, I have a 2015 4x4 with a 6.7 and 3.42 rear diff , tow a 33 ft 5th wheel at 60 mph and get a solid 12.3 mpg towing and 22 mpg hwy. Really love my truck.
     
    Superbike Mike likes this.
  8. BWC

    BWC Senior Member

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    Cup72 said he has an eco diesel so its a ram 1500 v6, thats not really relevant to your original question.

    That being said, I do not own a fewer truck so I can't give any opinion on the mileage but the post above is what your looking for ^^^^
     
  9. Tray Burge

    Tray Burge Senior Member

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    Welcome, fuel economy? Bawhahahahahahaha
     
  10. Dennis Shellito

    Dennis Shellito Member

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    There is a lot of room here for variables, as in is this truck stock? Unless you're planning on pulling a very heavy trailer in the mountains I would look for one that has a taller set of gears under it, because that axle ratio is going to lose you some fuel mileage.
     

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