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JimmEC 06-23-2011 06:12 PM

MPGs with a lift
What size lift and tires do you have and whats your highway MPGs like?

I usually get about 21-23, and have gotten up to 24, MPGs with the stock lift and tires and some engine mods. I'm saving for my lift and just wanted to know what I am getting into as far as gas.

ESP 06-23-2011 06:15 PM

If your going only by what the ECO meter on your dashboard is telling you for your MPG then your numbers are wrong. 23mpg is abnormally high for a JK even in stock form and with a manual tranny. You are probably getting upper 18s to mid 19s with a stock set up and a very light foot but realistically its probably less.

1" lift
33x12.5R15 GY Duratracs
16.8-17.4 mpg city
18.0-19.5 mpg hwy

JeeperJake 06-23-2011 06:53 PM

My average all around these past 8000+ miles on my 08 JK remains at 22.5 as figured by the miles/gallons at fill up on my calculator.

Granted I'm very conservative in my driving style, and 80% is on rural country roads, with little off road as of yet. I cruise at around 60-65 much of the time, and utilize other tactics learned over the years to save me a bit at the pumps.

Stock everything including 18" tires and 3.73 gears.

daggo66 06-23-2011 07:36 PM

18" tires? Are your differentials scrapping the road?

EVIIIL 06-23-2011 07:48 PM

I have a 4.5 BDS lift and 35's. I am getting around 15.5 now.

Maddawg 06-23-2011 07:48 PM

Are you guys driving with the Pat and coast method or what? I haven't seen 24mpg since i've had it unless i reset it and watch it drop

JeeperJake 06-23-2011 09:50 PM

...HAR!!! ....of course that 18" is the inside diameter, Mr. daggo

and probably driving style affects it the most...

still, consider the perhaps minimal effects of the various air-dams, the increasing drag of all the undercarriage pushing thru the murky atmosphere, the frontal resistance as well as drag-suckee-shadow of the Flying Brick plus all that marvelous tubes and hangydowny well as gearing etc.

There's a tremendous effect of such as drafting behind-and-in-front-of-large rigs for 20+ miles, which has increased my level-ground mpg indicated to nearly 30 on level ground...but I wouldn't want to do that much, its too demanding as well as a hazard....

I think lifts along affect mpg....but you can't have everything you want all at the same time, as far as I can tell.

MPG on the coast run I made Wednesday gave me 21.69mpg per miles/gal method. Lots of lower speed coastal curves and lots of RV traffic keep MPH down too.

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