I have a stock 6 speed 13 JKU and get about 18 -20 on a good day around town and 24-25 on highway going about 55mph if I do 65 it drops to 19ish. And I should mention that I'm not the greatest 6 speed driver in the world but I get to we're I need to go.

 

I have a bone stock JKUR. I even called the dealer about the pitiful mpg and they just said its normal because of the heavy drivetrain. So I asked if the window sticker was false advertising and they just said it isn't real world numbers...

 

Yeah somethings wrong my 13 with 3.73 and 35's and bumpers gets city 14.5-16 and 16-17.5 highway and I'm not broke in yet. My worst tank was 14 and that was 45 miles offroading in mountains through mud and 2 feet of ice snow

 

Well until the CEL comes on I'm pretty much stuck at 13.6 mpg. I even calculated it manually for the first 5 or so tanks and only eclipsed 14 once and only by .1. I have come to grips that I'll never see the 21 mpg Chrysler advertised. I didn't buy it for the mileage but I can say I'm dissapointed I'm not in the 16-18 range.

 

Thats about all you can do. Have fun with it and drive the piss out of it

 

Fill up your tank and reset your average MPG. Keep the display on average MPG. As soon as you leave the pump your Average MPG will displayed. For me after traveling a couple of miles or so my Average MPG will be around 19 or 20 and still be climbing. Stop the vehicle such as in stopping for a red light and watch the MPG deteriorate after only a few moments of engine idle. Just after a reset(ie fill-up) the values used to calculate the average MPG are still small and even small inputs of distance and fuel used will be readily observed.

If you drive with a lot of stop lights your mileage WILL suffer.

KG6SLC aka Eugene

 

The EPA fuel economy ratings are done by the manufacturer on a dyno for one or two types of vehicle in the model using EPA software. Since the Wrangler has a large number of configurations for axles, weight, tires, etc. most people will never have what is on the sticker. I would guess Jeep uses the most fuel efficient vehicle configuration for the rating.

Most of our Wranglers are going to be less than the sticker fuel rating especially when we go from a 3.21 to a 5.88 with 40" tires and a 7" lift. Those that get well above EPA ratings I have to question their math skills. You start talking 23 to 25 mpg and you are at Corvette levels (15/25). The Toyota RAV4 2WD gets 24/31 mpg. Happy 4 wheelin'.

 

Stock 2012 6 speed manual, 3.73's with stock 32" SR/A's, LSD. Here's my freeway readout:

 

How long did you drive like that. I know I get get on our 20 mile long 60 mph spot with no hills and reset mine and have it read 35+ with 35 inch tires. Soon as off that though it'll go down

 

Just wait till you reach single digits. A Prius these aren't, just the way I wanted it .