Quote:
Originally Posted by Shredjim
My X1 came with the 17" wheels with Goodyear RF tires which I thought were a bit harsh. So - I. recently got 18" 322 style wheels and put Michelin PS A/S 3 tires on it in 245/45/18 size. They look fine and don't rub, but I am thinking they might be a bit too big. One negative is my gas mileage went down by 3 to 4 mpg  |
Your odometer will read about 3% less or about 1 mpg if you haven't adjusted.
I change wheel sizes to smaller diameter like 26inch to 25 inch all the time to get more power, but you being bigger means more wheel weight.
I adjust miles driven with a scanguage and ignore the cars speedo which is already wrong.