Picked up the jeep last Monday and just filled up today for the first time. I calculated the mpg from the mileage on the trip odometer and the gallons it took to fill up. 12.7 seems really low compared to what others are saying. The computer told me I was getting 14.2 which was better but still. I was getting better mileage in my TJ. I probably drive my vehicles a little harder than most but seriously, I was trying to take it a bit easy since it's so new.