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Old 02-08-2010, 12:26 AM   #1
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Jeep Wrangler Gas Mileage

I am new to this forum. I am curious as to what real world gas mileage I can expect from a Jeep Wrangler. Which configuration is best for gas mileage and are there any mods that can improve gas mileage?


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Old 02-08-2010, 12:37 AM   #2
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Best mod to improve gas mileage is to sell the Jeep and buy something that gets good mileage. We have all the aerodynamic styling of a brick.

I get anywhere fro 14-19 depending on how I drive.

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Old 02-08-2010, 01:17 AM   #3

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Not much you can do to get good mileage. Stock form is usually best. You can try making it lighter. Keep it tuned up. Best mod for gas mileage...put the windshield down and get some goggles!
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Old 02-08-2010, 01:28 AM   #4
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I have 4"s of lift and 33's and I get about 14 or 15 mpg and that's 90% wide open straight road with 1 traffic light, driving light
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Old 02-08-2010, 02:24 AM   #5
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5.25 total lift, 33's and i get 14-15 pretty steadily on highway and in town.
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Old 02-08-2010, 04:08 AM   #6
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All of the above replies are correct. You didn't specify which model Jeep you were referring to but regarding gas mileage you are looking at crummy and crummier. But the tradeoff of driving a Jeep is worth it. If gas mileage is your main concern you may want to reconsider a jeep. But they are a blast to drive. And like they said above, stock is going to give you the best gas mileage. Don't believe the hype of the aftermarket stuff regarding improving gas mileage.
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Old 02-08-2010, 07:55 AM   #7
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15.4 the last fill-up, no 4-wheeling
2004 Black X 4.0, auto, 3.73's, soft top 31-10.5-15 Toyo A/T's on 8" Ultra 175's, 2" Teraflex BB.
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Old 02-08-2010, 08:08 AM   #8
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I have a stock JK. I get as high as 21 m.p.g. on trips to Chicago. I get as low as 16 m.p.g. during my daily drives in a combination of mountainous highway driving and city driving. Beats the heck outta the F-250 I was driving at 12 m.p.g. with an occasional spike to 14 m.p.g.
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Old 02-08-2010, 08:22 AM   #9
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Trading miles for smiles.....

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Old 02-08-2010, 10:55 AM   #10
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Keep it stock and accelerate slowly and you can easily average 18-19 mpg
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Old 02-08-2010, 01:55 PM   #11
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The trade off for gas mileage is priceless
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Old 02-08-2010, 02:19 PM   #12
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About 4" of lift and 32's on my Tj wrangler, and about the same mileage as everyone else... 15 to 19 depending on how easy I am on the gas etc.

But, honestly, I rarely check it anymore - I just don't care.. It's so much fun to drive The only time I check it now is if I think I might need a tune up etc.
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Old 02-08-2010, 03:12 PM   #13
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I get up to 22 mpg on a '98, 4.0, 5spd on 31's. I also run Schaeffer's synthetic oil in the complete drive system. I average 19 - 21 mpg on my 45 mile round trip DD, which is about 1/2 & 1/2 city/highway. Wind is a big factor, along with cold (long warm-ups).

Run straight gas, no ethanol unless it's bitter cold to avoid gas line freeze-up. I also use Lucus gas treatment every fill-up, seafoam through the tank every 3-4 fill-ups and sea foam through the vacuum line every oil change.

Jeeps are Jeeps, they don't get great miles per gallons, but they make up for it with smiles per mile!

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Old 02-08-2010, 03:55 PM   #14
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Wyominer, can you post up a pic as to where you are putting the seafoam in through the vacuum line? I'm mechanically DECLINED!!!
At some point during jeep ownership, you will BUST A NUT!!!
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Old 02-08-2010, 04:47 PM   #15
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I've actually noticed my gas mileage better than my old car (2007 mazda6 A/X). Now I have an 02 Wrangler Sport 6Cyl A/X, but I save a shit load of gas just driving chill and the manual transmission is amazing when it comes to preserving some gas. I also probably wasted more gas on my old car because i used to drive like a douche lol

I put $40 to fill up my tank (2.85per gallon) and it last me like 2 weeks if I take it easy.
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Old 02-08-2010, 05:00 PM   #16
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I love the posts in here, haha! I feel the same way as everyone else. I just took my TJ on a 400 mile trip this past weekend and got 16-17 mpg on highway/back roads, but I don't care at all. It snowed a ton and I got right through it. I have a 2 inch BB and 31's w/3.73's... as said before, I only check milage to make sure nothing is wrong or a tune up is needed. I love my Jeep way too much to care about 16 mpg.
every time I look at my Jeep I love it more and more
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Old 02-08-2010, 05:28 PM   #17
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35" tires 4.88 gears...... 13 MPG Avg.
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Old 02-08-2010, 06:32 PM   #18
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My boat gets 1.5 miles to the gallon (has to be premium). All things being being relative, makes my 98 TJ 4.0 manual look likes it sippin' the gas. I hold 80 gallons in the boat plus 2 gallons of injector oil. It ain't cheap but the tuna we come home with (hopefully) makes it worth while. Jeepin' in Anza Borrego in the winter and fishin' in the Pacific in the summer. It's just gas.

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