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Topic Review (Newest First)
05-05-2013 04:40 PM
JTPhoto JK 2008 Unlimited, 3.8L auto, 3.73, Superchips, heavy Pitbull tires true 35", OD Off most of the time average 17-18mpg. With 35" Duratracs the average was 18-19mpg.

Tire weight can play a major roll in mpg.
05-05-2013 04:18 PM
pbujkurdu 2013 jku sport auto, 3.73 on 315s - 16.6 city, 17.8 highway.
05-03-2013 11:31 PM
gr8fulKID 08 2 door auto
3.73 gears w/ superchips
37x13.5 toyo mts
14 mpg
05-03-2013 08:21 PM
Originally Posted by JEEPDON View Post
37's with 5.38 gears...........................when the gas gauge gets below 1/4................put gas in!!!!!!!
05-03-2013 05:55 PM
JEEPDON 37's with 5.38 gears...........................when the gas gauge gets below 1/4................put gas in!!!!!!!
05-03-2013 05:44 PM
Brasco20 2013 jkur, 3.73 on 35's, auto
13 in town, 15 on the highway
05-03-2013 04:46 PM
NMBruce 2013 JKUR auto with 3.73 gears 255/75/17 stock tires
2000 miles
16 city
18-21 highway
05-03-2013 12:59 PM
Kuwarri 2012 JK 2 Door
315/70r17 Goodyear Duratracs
2.5 AEV Lift
4.56 Gears
19.1 MPG
05-03-2013 12:35 PM
dawhitesJKU 2012 JKU
285/70/17 Toyo at2, fuel mavericks
19+mpg dd
05-03-2013 12:32 PM
TheyCallMeSnow 3.8 auto, (sorry, not manual) but 35s, amor, 19 and I play with the skinny pedal hard, 3.73 gears. I get 17 when I grandma it. I was getting 15 this morning but there was 40mph winds, so that killed it.
05-03-2013 06:18 AM
littlegolfertn I'm running 295/75r17 & 4.10 automatic. Checked it today & it was 16 mpg.
05-03-2013 04:00 AM
Billybaldin Not sure about those but I'm running 4.10s with 285/75/17 Toyo M/Ts. Im hitting about 15 in town and 19 highway. Give or take and MPG or two.
05-03-2013 03:30 AM
fuel economy list gears and tire size

Good place to list fuel economy to gear and tire sizes...

What's the average fuel economy for a 3.8 manual running 33's and 35's with 4.88 gearing?

And if anyone else wants to list there gears tyre sizes and fuel economy that would be great

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