I just changed out my wheels about a month ago, from 13 inch steel wheels to 15 inch alloys. Since then, I've noticed that my fuel economy has dipped dramatically (from 32mpg to 25mpg). Is it possible that I need to reset my ECU for a change in wheel/tires? What else could be the cause of this? From my research, the wheels should only weigh about 5 lbs more than each steel wheel, a total of 20 lbs extra.
thanks.
thanks.