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How much does your lift effect your MPG?

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Old 03-10-2012, 11:16 PM   #1
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How much does your lift effect your MPG?

I am planning on getting a 2-3 inch suspension lift soon and was wondering what if any MPG change I could expect? what does it really change?

thanks
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Old 03-10-2012, 11:19 PM   #2
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The tires that usually go with a lift will lower the mpg the most
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Old 03-10-2012, 11:52 PM   #4
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ok, so If I keep 31's like I already have the lift its self shouldn't change my MPG very much? I hear people bitching about how Lifts hurt their milage and thats from the 33's or 35's they put on?
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Old 03-10-2012, 11:54 PM   #5
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you lift the truck to fit bigger tires, and its usually the tires that kill mpgs.

it also depends on the kind of tire; street tires will get you more MPGs than aggressive mud terrains
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Old 03-10-2012, 11:54 PM   #6
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Quote:
Originally Posted by bhh2000 View Post
ok, so If I keep 31's like I already have the lift its self shouldn't change my MPG very much? I hear people bitching about how Lifts hurt their milage and thats from the 33's or 35's they put on?
true! the lift it self should not change it much. itís the tire size that gets you.
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Old 03-11-2012, 12:01 AM   #7
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The lift alone will affect MPG as you are creating more drag by lifting the body & therefore exposing more of the tires and undercarriage, increasing the amount surface area that has to slice through the air. Adding bigger tires will certainly increase the effect. Don't be surprised if you drop 2mpg with the lift alone.
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Old 03-11-2012, 06:27 AM   #8
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^ this. I used 8 tanks of gas when I bought my truck and averaged 21 mpg. Installed lift, wheels, & tires now I struggle to get 15 mpg.
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Old 03-11-2012, 09:12 AM   #9
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I had just a 2" lift with stock tires for a few weeks and saw no change in MPG. Then I got 265/75R16 P-rated Hankook A/Ts and still had no change (with odometer corrected for tire size). The P-rating is key, LTs will lose you a couple MPGs.
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Old 03-11-2012, 10:29 AM   #10
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Quote:
Originally Posted by MountainEarth View Post
The lift alone will affect MPG as you are creating more drag by lifting the body & therefore exposing more of the tires and undercarriage, increasing the amount surface area that has to slice through the air. Adding bigger tires will certainly increase the effect. Don't be surprised if you drop 2mpg with the lift alone.
Not true.
Quote:
Originally Posted by Large View Post
^ this. I used 8 tanks of gas when I bought my truck and averaged 21 mpg. Installed lift, wheels, & tires now I struggle to get 15 mpg.
The WHEELS and TIRES are what affected your mileage, not the lift (alone).
Quote:
Originally Posted by PSU Taco85 View Post

The undercarriage and drivetrain move up with the lift (assuming you do a suspension lift), nothing more is exposed except for some more of the tire. Lift doesn't affect MPG enough to notice. Tires killed my mpgs
This ^^. I track every tank of gas that goes through my truck and there was ZERO change in mileage with the ~2" suspension lift. (I know that won't be the case when I upsize my tires...)
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Old 03-11-2012, 10:52 AM   #11
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I put a 2" lift on my 07 ext cab with my 255/70/16 and im still getting the same mileage 17-20 city and hwy driving. I will be going to a 265/75/16 to get a 1.5" taller tire and i'm sure i'll loose some MPG than.
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Old 03-11-2012, 10:59 AM   #12
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I lifted my truck to perform well off-road and for function not to worry about what kinda MPG im getting. I do have to say my 6 little squirrels are very thirsty in the city an on the highway
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Old 03-11-2012, 11:08 AM   #13
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Lifted mine 2.5", MPG's stayed the same. We'll see what happens after the tires.
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Old 03-11-2012, 12:14 PM   #14
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I do believe I said lift, wheels & tires. And you can lose Mpgs with the lift alone, are you implying it's impossible?
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Old 03-11-2012, 12:16 PM   #15
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Not to be a jackwagon, but who cares? It may go down a couple, but when you get 18 or so already, what's another couple of MPGs among friends?
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Old 03-11-2012, 12:20 PM   #16
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Quote:
Originally Posted by Dustyroades View Post
I had just a 2" lift with stock tires for a few weeks and saw no change in MPG. Then I got 265/75R16 P-rated Hankook A/Ts and still had no change (with odometer corrected for tire size). The P-rating is key, LTs will lose you a couple MPGs.
^^^^^ this. I did the same exact thing (same amount of lift and same tires) and also saw no change!
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Old 03-12-2012, 01:55 AM   #17
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Quote:
Originally Posted by PSU Taco85 View Post
... nothing more is exposed except for some more of the tire.
And axles and CVs and diffs. You're also raising the profile of the vehicle, and changing the flow dynamics from factory. Simply by lifting, more air will be diving under the truck, which is notorious for inducing drag.

But as others have said, every truck and driver is different, and results will vary.
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Old 03-16-2012, 11:50 AM   #18
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No change for me with 3" lift. Normaly get around 20 mpg with winter gas and around 24 mpg with summer gas.
I just filled up yesterday and after 397.6 miles (not my record that's 407) it took 19.343 gallons (20.55 mpg with 95% hwy @ 70 to 75 mph).
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