2 dr 3.73s 6sp = 21-22 hand calc. I commute mostly highway miles with cruise set at 57mph. Drops into the 19-20 range in town. I keep it in the green mostly.

 

15-16 mpg with 80% rural driving and 20% highway on JKU auto with 33's and 3.73 gears. Just did a trip to Pittsburgh all highway and averaged 16.1 mpg @73 mph.

 

These numbers are from a 2012?

 

Yes sir! The 33's really did a toll on my MPG's. Couldn't imagine what my MPG's would be with 35's (what I initially was going to go with). My tire size is also corrected using a Procal. Nonetheless, I have no complaints and love my Jeep!

 

JKU Rubicon with 4.10 gears everything stock, about 2700 miles and I get 16.3 mpg with majority of driving on highway. I have noticed that the digital read out is wrong, it says 17.5.

 

I just ordered a nice log book to keep in my new jeep to keep track of gas fill ups, oil changes and maintenance. Never done this before but I love data. Also, the records will help prove I did maintenance for the max care lifetime warranty I bought. After a year or so I will put the data into excel.

 

Willing to bet there are apps that serve that purpose as well if you have a smart phone

 

Another nice App for Droid and i-phone users is an App called BlueDriver
from Lemur. It's basically a portable self-contained diagnostic Log-Book
with an auto-writer. It has more info about your vehicle than you will
ever need to know, (once you "plug-in") or care to even think about.
MAP pressures, Spark duration, influxes in tire pressures, MPG,MPH,
aspiration values, read, e-mail and clear trouble codes... etc.
And there is a toll free hot line for any questions...You get the idea.

The App is Free.
The Wireless Sensor is $39.95 USD
the toll free # 1.866.302.0054
or find them on the web @
www.bluedriver.net

Just my 2 cts.