Jku sport, 3.73, mostly city, stock , 400 miles, averaging 18-19.

 

I can seem to find out how to bring up the MPG on the onboard computer in my 2012. I went from on 08 to a 12. It was easy on the 08 just a button. Where is the feature on a 2012?

 

It's on the left side of the steering wheel. Should say Step and Reset.

 

JKU Rubi auto, 4.10 gears, stock wheels and tires. Mix of city/hwy. Saw almost 21 mpg on hwy but, on longer trip prob would go up.

 

My trip to Clayton Oklahoma averaged 20.8 according to the computer. However, when I manually calculated based on amount of fuel used and distance travelled, it came out to 22.3mpg. I'm REALLY happy with the mileage, especially with 4.10's and auto transmission.

 

JKU Sport S
Auto
3.73
1000 Miles
about 65/35% highway/city
This last tank, the computer read 19.6, my math was 18.5

 

2012JKU Rubi, 4.10 ...18.9 mpg, running mixed driving, on Hwy I run 70 mph, hittn about 2600 rpm.

 

Jku 2012 3.73 21 mpg 6 speed

 

2,100 rpm is about 65 mph. I used the AEV Procal to reset the computer so that it knows about the different tire heights, so it runs like a stocker, no issues at all. In my opinion the 35" tires should be a factory option if you've got 4.10 gears.

 

Basically the same setup (4.10s/35s/3.5"), but with a 200 lb lighter Sport model - same results. I haven't determined whether it's the 35s or the fact that I keep dipping heavily into the throttle for the wow factor. Never had that urge with my 3.8.