Just took the lady on a 400-450 mile road trip from Md to Southern NC.. Needless to say I was worried I was gonna be filling up the gas tank alot on this trip... I did and oil change and just did a pan drop for the trans fluid (trans fluid looked and smelled good, very minimal shavings) just as some preventative maintenance before I left and was very surprised to have gotten a lil over 350 miles out of a tank of gas even with 37's on it.. It maybe took me about a tank and an eight/quarter to drive one way on the trip...