What can you tell by looking at your tread?

Wear in the middle of the tread indicates that your tires have been run overinflated for a significant period of time.

Wear on both shoulders indicates that your tires have been run underinflated for a significant period of time.

To prevent this problem, you should maintain the recommended tire pressure for your vehicle.

Wear on the inside or outside edge indicates that your wheels are misaligned.

Wear left or right of center is called "cupping." This indicates that your tires need to be balanced or that there is a problem with your vehicle's steering or suspension.