Thanks all for the info. JeepHerz, i've been told of the resetting of the computer, but like everyone else is saying, there's not that much of a difference in tire size. So will resetting the computer make significant changes to regaining gas mileage or just make the mileage look 'not so bad'? Also, am I screwing up my RPM, gear settings, etc. by not changing the settings. My dealership has said they will look at it, but if I know one thing it's to never trust the dealership.
I just love how when I drove it home off the lot it said 330 miles to empty...... not so much!