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Old 06-27-2012, 07:10 PM   #1
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Mileage!

What are you guys getting??? Post your results and setup like engine/tranny/tires/gearing. I was surprised to find out that I managed to average 20.8 mpg in my 4.0 auto with 30s. Anyone else getting this kind of mileage?

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Old 06-27-2012, 07:33 PM   #2
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I get ~15mpg around town but pulled 19.15mpg on the interstate. That with the 4.0L, 5 speed, 33" tires, 4.56 gears, and armor.

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Old 06-27-2012, 07:36 PM   #3
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I just did my calculation this morning. I'm running 4.0, 5-speed manual, 4:10's and 35's. I got 16.1 mpg's mostly I-70 into the mountains and back. All in all I'm not complaining one bit. in order to keep 65 mph up the steep hills I was 3rd gear at 3,750 rpm's. Oh yeah, it was 100+ degrees out too.
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Old 06-27-2012, 08:25 PM   #4
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4.0 , 4:11s, manual , with 33s. Empty 17mpg,, loaded with camping gear and trailer 14mpg. With a good tailwind those numbers go up to 17 and 20.. Our last trip out west and back we averaged 15 mpg over the 4200 mile trip.. It is what it is..
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Old 06-27-2012, 08:44 PM   #5
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05 Unlimited Rubicon, 4.0, 4.11s, 6spd, 32s, and I average about 16mpg
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Old 06-27-2012, 09:59 PM   #6
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14 city 32's 3 speed auto 3.73 (unless PO changed it). I have not taken it on the freeway for further then 20 miles so no clue what I get on the highway.
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Old 06-27-2012, 10:03 PM   #7
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2006 LJ, bone stock. I just eked out 18 mpg on a recent, mostly highway trip keeping it at around 65 mph. Around town, it's 14-15 though. Oh, it's the 6-speed.
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Old 06-27-2012, 10:31 PM   #8
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Based on your guys' results that's why I was surprised to get almost 21 mpg! I'm pretty easy on the accelerator and do a pretty even mix of city and highway driving.
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Old 06-28-2012, 12:02 AM   #9
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2006 TJ Rubicon, some lift but still 31" tires. I average 15+ overall, got 21.5 on a long distance run with a heavy trailer keeping it under 60MPH. I track my fuelups on "Fuelly.com" and you can compare with other Wranglers although it doesn't give any mod info
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Old 06-28-2012, 12:04 AM   #10
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I envy all of you. 99 4l, 3 spd auto, 3.73 gears, 32x11.5 tires. I just got back from Colorado, Estes park area. My first tank from my house to hays ks, a wopping 12.3. In estes park I was able to 17.8 on a tank. Higher altitude = better mileage. I also am easy on it. I'm getting 12 in town. I run 3200 rpms at 75 mph.
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Old 06-28-2012, 12:43 AM   #11
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Quote:
Originally Posted by KenG
I envy all of you. 99 4l, 3 spd auto, 3.73 gears, 32x11.5 tires. I just got back from Colorado, Estes park area. My first tank from my house to hays ks, a wopping 12.3. In estes park I was able to 17.8 on a tank. Higher altitude = better mileage. I also am easy on it. I'm getting 12 in town. I run 3200 rpms at 75 mph.
I have same jeep same setup similar results
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Old 06-28-2012, 01:05 AM   #12
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2005 2.4L 6 speed and 31's. I averaged 21 on a recent trip from Kentucky to myrtle beach, Sc. Around town I get 19-20.
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Old 06-28-2012, 01:21 AM   #13
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You're doing better than me, my 2.5 with 31s and a five speed is producing a solid 18.5mpg in town. Not enough freeway driving or a long enough trip to get a handle on that.
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Old 06-28-2012, 01:45 AM   #14
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'99 4.0, 31 tires, stock tranny (5-spd): 16-17mpg Thinking of putting on a cold air intake.
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Old 06-28-2012, 02:06 AM   #15
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00, 4.0, 5 speed, 4.10s, 35s, I average 12
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Old 06-28-2012, 04:24 AM   #16
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2000 4.0 5 speed 33x10.5 3.73 gears and in town I get about 13. Doing all highway I get 15.
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Old 06-28-2012, 06:00 AM   #17
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05 Rubi 4.0 6 spd 4:10 gears 33 x 12.5 x 15 about 14 city 17 hway.
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Old 06-28-2012, 07:05 AM   #18
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98 4.0 5 speed sahara, 5.5" lift 3.07 gears
With 33s= 10mpg Looks like a monster
With 225/75r15= 20mpg Looks like a clown car
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Old 06-28-2012, 07:12 AM   #19
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Quote:
Originally Posted by MudMonster
98 4.0 5 speed sahara, 5.5" lift 3.07 gears
With 33s= 10mpg Looks like a monster
With 225/75r15= 20mpg Looks like a clown car
My clown car - 97, stock (235's but I think 215's were factory) with 2.5L, 5 Speed, hard top & A/C. Best I can get is 19. But I also don't baby it
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Old 06-28-2012, 07:51 AM   #20
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05 LJ. 4.0L, 6-speed, 3.73s, 33x10.50 MTs.
I drive with a light foot.
13.66 mpg local commute, about 15 highway.
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Old 06-28-2012, 09:10 AM   #21
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06 4.0 with auto trans and 31" tires. Completely stock. I drive lightly on the skinny pedal. 14 city - 19 hwy. As best I can determine.

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Old 06-28-2012, 09:22 AM   #22
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'04 4.0 auto. 31s. My mileage is so spastic. The fuel here right now is all over the charts. I drove out to the badlands a couple weekends ago. got crap mileage running ethanol, 14 highway. Refueled with non-ethanol. Then went back over the same road this weekend to meet my mom for lunch. I hit 19 mpg. With the ethanol I noticed that the tranny had to down shift out of OD a lot pulling hills. With the straight gas it did not. Getting harder and harder around here to find straight gas.
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Old 06-28-2012, 09:33 AM   #23
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I have a 97 4.0l with 3.07gears ugh and 30s I run 22 mpg highway and 16s city. With 33s I can run 21mpg except when in the mountains.
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Old 06-28-2012, 10:02 AM   #24
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'04, 4.0L, 4speed auto, 5.13's, 35's, 3"SL, 1.25"BL = 12city/15hwy.
Same setup but with the stock 4.10 gears= 8city/10hwy
stock '04 rubicon before changes was 16city/20hwy
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Old 06-28-2012, 10:31 AM   #25
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I'll let you guys know on the trip to Ouray and Telluride in July. Totally doing Black Bear.
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Old 06-28-2012, 11:10 AM   #26
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Quote:
Originally Posted by yzinger02 View Post
What are you guys getting??? Post your results and setup like engine/tranny/tires/gearing. I was surprised to find out that I managed to average 20.8 mpg in my 4.0 auto with 30s. Anyone else getting this kind of mileage?
thats about what my mom gets with a bone stock 06 LJ w/ auto. she drives like an old lady tho

with 4.88s/33s/42RLE, I can get anywhere between 13-18mpg...and the majority of the difference depends on driving style.

if you drive like an old lady, keep it at or under 60mph and keep the RPMs low (under 2500), accelerate slowly, hypermile when coming to a stop, coast downhill, etc...the mileage isn't too bad. with bigger tires, proper speedo calibration is key.
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Old 06-28-2012, 12:09 PM   #27
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4.0L 5 speed 3.73's 4" lift 33x12.5 toyo mt's getting about 12.5 mpg I drive a mix of city bush and hwy.
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Old 06-28-2012, 12:34 PM   #28
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Average about 18 mixed. The highways are mountain roads so they're nice and hilly. 2003 4.0 4 speed auto on 33s with 373s

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