2012 Dodge Challenger R/T Classic 2dr Coupe
A: Is rotating my tires worth it? ?
Most BMW's have offset tire sizing. meaning the rear tires are different sizes than the fronts. This is typical with the "sport package" and other performance packages. Thus, rotating the tires is not possible. To add to that issue, the tires on all BMW's that I am aware of are "directional", meaning they are designed to rotate in one direction only. So, to "rotate the tires" at all, you would have to demount the tites from the wheels, and only be able to move the right rear to the left rear, following the same rotation direction, and the right front to the left front, and vice versa. The cost to do this would far overshadow any benefit in wear or mileage service for the tires. In fact, it could result in poor handling and a potential for sacrificing ride quality. On some lower line BMW's, where the tires are all the same size, they are still directional, so yes you can rotate them. They have to go front to rear only though, and not cross rotated as you used to do with non-directional, non-radial tires. To further muddy the waters, the manufacturers of the run-flat tires on almost all BMW's today don't recommend roration. So, there in a nutshell, you have it, Inflate carefully, use the correct pressure (I inflate to 1 lb over the recommended pressure for normal driving; 2 lbs over for extended highway driving) check your tires with a quality gauge when they are cold in the mornings, reset your pressure indicator on your instrument panel aftewards, and never depend on that TPM system in the car to tell you that you are a few pounds low. By the time it warns you are low, you likely have a flat and will need a new $400 tire. Happy Motoring courtesy of the Safety Doc!