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How much does a 2" lift reduce mpgs?

Discussion in 'Off-Roading & Trails' started by xmt037, Aug 21, 2023.

  1. Aug 21, 2023 at 12:23 AM
    #1
    xmt037

    xmt037 [OP] New Member

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    Sorry to keep asking about lifts :) but I'm wondering if folks with 2" lifts noticed a drop in mpgs? If so, how much? Thanks.
     
  2. Aug 21, 2023 at 12:45 AM
    #2
    Kwikvette

    Kwikvette Kwik Fab

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    Not enough to even notice

    Tires (rotating mass) made a larger difference

    If you're worried about MPGs at all, just don't lift it
     
    Ironguy, gomiami and Thatbassguy like this.
  3. Aug 21, 2023 at 4:04 AM
    #3
    Thatbassguy

    Thatbassguy New member? Really??

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    ^^What he said.

    The biggest MPG killers are bigger, heavier tires and roof racks. I lose about 10% with my rack on VS off.

    Also, your driving habits will affect MPG more than anything else. I've seen a 5+ MPG difference between 2 tanks on the same day just by changing my cruising speed (65 MPH VS 80+ MPH).
     
    Kwikvette[QUOTED] and Eubeenhadd like this.
  4. Aug 21, 2023 at 6:41 AM
    #4
    Eubeenhadd

    Eubeenhadd Bit of a derp

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    This guy gets it. Want mileage? Don't do things that reduce how smooth the airflow is, don't do things that increase the amount of mass that must be moved, and don't move what you've got faster than you need to. My V8 gets 20MPG on the interstates through Appalachian mountains by setting my cruise at 60, sticking to the right lane of the interstate so I'm not slowing down or accelerating much, and not adding stuff to the outside it doesn't need.
     
  5. Aug 21, 2023 at 6:47 AM
    #5
    bassist

    bassist New Member

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    MPG losses are going to come from changing the frontal surface area.

    When you lift the truck, you are making it “larger” to the air. A very rough approximation would be to measure the height of your vehicle from the bumper to roof (X) and then solve for (X + 2”) / X.

    Take your MPG and divide by that number, and consider that the absolute worst case scenario.
     
  6. Aug 21, 2023 at 11:07 AM
    #6
    beedee

    beedee Member

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    Fixed that for ya.
     
    steelevo, Ironguy, PVT Pablo and 2 others like this.
  7. Aug 21, 2023 at 11:08 AM
    #7
    Kwikvette

    Kwikvette Kwik Fab

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    Right?

    Imagine daily driving an 80 series LC :bananadead:
     
  8. Aug 21, 2023 at 11:13 AM
    #8
    Eubeenhadd

    Eubeenhadd Bit of a derp

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    Lord I wish
     
  9. Aug 21, 2023 at 11:14 AM
    #9
    Kwikvette

    Kwikvette Kwik Fab

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    20230701_070348.jpg
     
  10. Aug 21, 2023 at 5:27 PM
    #10
    Steely123

    Steely123 What's the new trend? I'll do it!

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    If you put it in neutral and push it everywhere, your mpgs will rock with your lift........everything else will kill mpgs just thinking about it.

    I lost.5 mpg just parking next to one with bigger tires than mine.
     
    Ricphoto, Accelerator and Thatbassguy like this.

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