I don't understand. Why would the car not have the same mileage on day 1 as it does after a few months?
It goes up as the car gets some miles on it and as you figure out how to make use of real-time MPG bar graph on the MID. I've got 3800 miles on mine now and my last tank was 51 mpg. So far on this tank (it's less than 30 miles, though, so take it for what it's worth), I've averaged about 52.5 mpg.Got only 35.5 on first tank and 37.5 on second. Don't know if it's me or the car. I am currently blaming it on the hilly SW PA roads. Doing better than the Grand Cherokee Hemi that I traded.