When is the last time you checked your tire’s tread depth? As a best practice, you should check the tread on each tire every 3,000 miles or once it reaches 4/32 of an inch deep. To check your tread, there are four quick and easy methods. First, grab a penny and insert it into your tire's tread groove with Lincoln's head upside down and facing you. If you can see all of Lincoln’s head, your tire tread depth is less than 2/32 of an inch, and it's time to replace your tires. Another easy option is using a quarter to do the same test. If the tread touches Washington's head, you have at least 4/32 of an inch of tread remaining. If you can see all of Washington’s head, contact a local store. The third is a tried-and-true tread depth gauge. Some gauges are needle-shaped, and a part extends to measure the tread depth. Measure in multiple areas around the tire, as tires can wear unevenly. Another option is using an indicator bar that's molded into most tires. Keep in mind, if you’re at the wear bars, it’s already time to replace your tires. Certain Goodyear tires, such as the Goodyear Assurance® MaxLife, have Goodyear's Wear Gauge, which provides a visual indication of the tire's remaining tread depth, allowing drivers to continually monitor their tires' wear instead of simply providing a warning at the end of their life. If you find that the tread reaches 4/32 of an inch deep, it should be monitored more closely as replacement tires may be necessary as your tire’s tread is wearing down. Worn tread may be just one of many reasons to replace a set of tires. If you’re in need of a new set, buy your new tires online today. Goodyear.com. Tire buying, simplified.