“Drive wheels straight; cross the non-drive wheels”.
This means on a front wheel drive vehicle:
- The front wheels are moved to the rear on the same side.
- The rear wheels are crossed and moved forward.
By following this modified X method, every tire will eventually be in every wheel position. Some wheels cannot be rotated such as many high-performance vehicles that not only use directional tires but also different sizes front and rear. In this case, the tires must remain where they are and simply replaced (always in pairs) when they are worn.