Originally Posted by Trick
Originally Posted by James Sonne
You should NEVER rotate tires from left to right, ONLY from front to back.
This is only true for radials, not all tires.
And now we may have an exception for Crossfires... I'm starting to think I took those high school auto shop classes for nothing.

not true for most modern radials. if you rotate tires properly on most vehicles (crossfire not included), the tire will spend time during its life at all 4 locations on the vehicle. tire manufacturers and vehicle manufacturers typically recommend rotating as follows:
FWD: LF to LR, LR to RF, RF to RR, RR to LF
RWD & 4WD: LF to RR, RR to RF, RF to LR, LR to LF
what's interesting is that some tire shops don't follow these recommendations to extend tire life. some people have resorted to marking their tires with chalk to help the technician perform the rotation properly.
as far as the crossfire is concerned, i haven't reached the mileage where i need to consider rotation. i will probably check to see if there is any difference in treadwear over time between the inside and outside tread and then make a decision on whether to rotate side to side.