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Old 03-20-2012, 09:27 PM   #1
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2006 wrangler x on 31's gas mileage

Just bought new AT tires for the jeep. They run great. Checked my mileage and I'm getting right under 13 mpg. I believe everything else is stock. Is this typical? I don't expect great mileage but was hoping I'd be a least getting 15....

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Old 03-20-2012, 09:30 PM   #2
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Originally Posted by hoopdogg View Post
Just bought new AT tires for the jeep. They run great. Checked my mileage and I'm getting right under 13 mpg. I believe everything else is stock. Is this typical? I don't expect great mileage but was hoping I'd be a least getting 15....
I got 15 with mine after I did the spark plugs.

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Old 03-20-2012, 09:30 PM   #3
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I also have an 06 6 speed with 31's and I get 12-13 as well.
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Old 03-20-2012, 09:44 PM   #4
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31s 2001 4.0 160k average 18mpg
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Old 03-20-2012, 09:46 PM   #5
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02 wrangler with 33s here and average 13.5
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Old 03-20-2012, 09:59 PM   #6
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03 Rubi with 32's and get 14.7
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Old 03-20-2012, 10:09 PM   #7
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Quote:
Originally Posted by Z-TJ

I got 15 with mine after I did the spark plugs.
What type of spark plugs u used?
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Old 03-20-2012, 10:22 PM   #8
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04 X on 30's, I can usually get 18mpg
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Old 03-21-2012, 12:33 AM   #9
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Mine's a little older (1999), 31" SilentArmors at 26-28 psi, 3.73 gears, and I'm getting 17-18 driving around town.


What MPG did you get before the new tires?
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Old 03-21-2012, 08:14 AM   #10
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10-11 on mud tires, same size. is there anything i can do to improve it a little? I bought it used, and love it, but am wondering why everyone else is getting better...?
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Old 03-21-2012, 09:22 AM   #11
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My 01 with a 3speed averages about 14. We did an overall trip average of 18 on our recent trip to Co. I think I could have done better if not for those spirited runs.
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Old 03-21-2012, 09:31 AM   #12
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'06 X 6 speed. Usually get between 16 and 18, but just got 20 on the highway heading down to NC this past weekend. Everything's stock except for my 31" Fierce Attitude M/T tires and Granite Alloy Wheels.
What colors yours? Mines silver. Don't ya know silver ones get the best mileage
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Old 03-21-2012, 09:49 AM   #13
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I quit checking the mileage some time ago, but anything over 12 is good
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Old 03-21-2012, 10:35 AM   #14
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I get about 16 with my '04
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Old 03-21-2012, 10:43 AM   #15
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Quote:
Originally Posted by Powder Monkey
31s 2001 4.0 160k average 18mpg
How are you doing that?
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Old 03-21-2012, 11:33 AM   #16
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Here is what I get, hwy right at 60mph 17~19mpg, shifting easy right at 2000 rpm. If I shift above 2000rpm the mileage drops like crazy. City goes down to 15~17mpg. If I tow something (usually a dirt bike) gets 13~15mpg.
06 4.0L with six speed and 31's.
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Old 03-21-2012, 12:02 PM   #17
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98 Tj 2.5 on 33's muds. 14mpg's if its not to windy.
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Old 03-21-2012, 01:18 PM   #18
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How are you doing that?
Dunno, but it's what I get. I try to stay under 65
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Old 03-21-2012, 02:04 PM   #19
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31s on my 06 rubi I did the computer reset thing listed on the quadratec website and WOW way way way better MPGs crisp acceleration and my check engine light is on with a 02 sensor fault due to a giant hole in my muffler I fill up with 89 octane and get 220+ miles on a tank (all city driving) but get 150-170 miles on 87 octane my jeep likes the good stuff Lol
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Old 03-21-2012, 02:51 PM   #20
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31s on my 06 rubi I did the computer reset thing listed on the quadratec website and WOW way way way better MPGs crisp acceleration and my check engine light is on with a 02 sensor fault due to a giant hole in my muffler I fill up with 89 octane and get 220+ miles on a tank (all city driving) but get 150-170 miles on 87 octane my jeep likes the good stuff Lol
Is this a 6spd or auto? Wondering what computer reset ur talking about.
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Old 03-21-2012, 03:17 PM   #21
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It's an auto... I removed the + batt cable n touched the - batt terminal for 30 sec, turned on the ignition, turn on my headlights, turn off headlights, close ignition, connect + batt cable and your done.
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Old 03-21-2012, 07:18 PM   #22
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260 miles, 12.8 gallons to fill up this morning. I averaged just over 20 mpg. That included 20 miles in a sand wash. The 4-banger has it's perks.
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Old 03-21-2012, 07:37 PM   #23
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i also have an 06 x 4.0L with a 6 speed and 31's i get on average 16mpg and i have an intake and exhaust
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Old 03-21-2012, 08:03 PM   #24
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How are you doing that?
Speedo's off.... -jk
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Old 03-21-2012, 08:18 PM   #25
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What type of spark plugs u used?
I used the autolites (iridium) they won't burn hotter,or anything they just last a long time. Most people recommend the NKG.
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Old 03-21-2012, 08:24 PM   #26
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Quote:
Originally Posted by Officer Gonzalez
It's an auto... I removed the + batt cable n touched the - batt terminal for 30 sec, turned on the ignition, turn on my headlights, turn off headlights, close ignition, connect + batt cable and your done.
What????? You touch the + battery cable to the - terminal? Do you have a link where you read this? Am I naive and you are just joking around?
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Old 03-21-2012, 09:01 PM   #27
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Old 03-27-2012, 04:48 PM   #28
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I have an 04 lj 4.0 auto and average 14.4 mpg with a cold air
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Old 03-27-2012, 05:55 PM   #29
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Quote:
Originally Posted by hoopdogg View Post
Just bought new AT tires for the jeep. They run great. Checked my mileage and I'm getting right under 13 mpg. I believe everything else is stock. Is this typical? I don't expect great mileage but was hoping I'd be a least getting 15....
Is your speedometer corrected for that size tire?
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Old 03-27-2012, 07:28 PM   #30
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Quote:
Originally Posted by Z-TJ

I used the autolites (iridium) they won't burn hotter,or anything they just last a long time. Most people recommend the NKG.
I just did my tune up n I used the champion iridium plugs. Have u used them before? I'm more into gettin original stuff

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