Tire rotation is the practice of moving the wheels and tires of an automobile from one position to another, to ensure even tire wear. Even tire wear extends the useful life of a set of tires, but the value of this is disputed.
What is the point of rotating tires?
Rotating your tires evens out the wear and makes them last longer. Proper rotation not only helps even out wear and extend the life of your tires, it provides the perfect opportunity to make certain all four wheels are in good working order.
Do you really need to rotate your tires?
Tire rotation is necessary if you want your tires to last as long as possible. Rotating tires equalizes the wear that tires receive. If you opt not to rotate your tires, that's fine, but you'll likely end up buying more tires in the long run.