Tire Wear Patterns
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Tire Wear Patterns: What Do They Mean?

Tires are an extremely important component of your car, and it’s a good idea to check them periodically to see how they’re faring. It’s summer now, but the effects of winter may linger in your tires: Snow, salt, cold or fluctuating temperatures, and the winter potholes that often afflict roadways can all cause wear and tear. In fact, your car’s tires have a story to tell, and if you want to determine how well the tires are doing, then you need to be able to understand what the tire wear patterns mean.

Common Tire Wear Patterns

By closely examining the tires, you will be able to determine if the tire is wearing properly or if replacement should be considered. Here are five common tire wear patterns you need to be aware of:

1. Excessive wear on the inner or outer edge of the tire, known as “toe wear” or, in more extreme cases, as “camber wear,” suggests something may be wrong with the wheel alignment. To fix the problem, you’ll likely need to make an appointment with a mechanic.

Toe and Camber Wear

2. If the center of the tire is quicker to wear than the edges, then the tire is likely over-inflated. Read the information on the side of the tire to determine the proper tire pressure and adjust accordingly.

Center Wear

3. If the outer edges of the tire wears faster than the center, the tire is likely under-inflated. Follow the tire pressure recommendation on the side of the tire, and add air to the tire as needed.

Outer Edge Wear

4. A diagonal scalloping on the tire, known as “cupping wear,” suggests the suspension may be worn, bent or somehow compromised. This is a serious concern, and you’ll probably need to make an appointment with a mechanic immediately.

Cupping Wear

5. Patchy wear implies the tire is out of balance. Have a mechanic spin and rotate your tires, as this will help equalize the wear. The National Highway Traffic Safety Administration suggests having tires spun and rotated every 5,000 miles, but it’s a good idea to consult your owner’s manual first.

Patchy Wear

A Closer Examination 

Wear patterns aren’t the only things you can learn about from a close inspection of a tire. There are also markings and codes on the side of the tire that provide specific information, and this information is there to help you when it’s time to replace your tires. The molded-in markings on the side of the tire include information about everything from the tire’s size and load rating to its temperature and traction rating:

Tire Markings

All tires are also marked with a manufacturer’s date. The expected service life of a tire is roughly 10 years. If you’re buying new tires, be sure to check the manufacture’s date, as you never know how long a tire has been sitting in stock.

Manufacture Date

Whether tire wear patterns suggest something as simple as an over-inflated or under-inflated tire, or point to a more serious problem with the car’s suspension or alignment, by understanding what the tire wear patterns and molded-in markings mean, you’ll be better able to determine the overall health of your car. After all, your tires are the only thing lying between your vehicle and the road. With these tips, you’ll be well equipped to maintain your tires for life.

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