Over time, tires will become worn and their tread depth will be too shallow for safe driving. Knowing what to look for will help you determine when it is time to get a new set for your vehicle. Below are a handful of methods to know about for testing treads.

What to Know About Treads

1. Inspect Treadwear Indicator Bars

Located at the bottom of the tread grooves, these indicators can help you check tread health. If the treadwear bars are flush with the ribs next to them, the treads are too worn down and you need new tires.

2. Invest in a Tread Depth Gauge

Tread depth gauges are a helpful tool for car owners. To use this device, place the probe into any groove, and then push down the base of the gauge until it lies flat against the tread block. When you remove the device, avoid touching the probe. You will then see a reading of how deep your treads are. Repeat on different areas of all four tires.

3. Check Depth Measurement

When treads reach 2/32 of an inch, they are legally too worn to drive on. You can check this with the penny test. Grab a penny and place it in one of the treads so that Lincoln’s head is upside down. If you can see his whole head, you need a replacement set.

4. Look at Tread Patterns

If you notice uneven treadwear, you may need a wheel alignment. When the center of the tire is the most worn, you might have over-inflated wheels; meanwhile, when the outside is worn down, they may be under-inflated. Over- and under-inflation can lead to blowouts and accidents while driving.

5. Consider the Weather

Avoid letting the tires get too worn down, especially if snowy weather is on the horizon. When treads get to 4/32 of an inch, you should replace them. Anything lower increases your risk of slipping on slick roads—and even hydroplaning.

For affordable auto parts, such as tires and engine components, head to Anchorage’s top salvage yard, Northwest Auto Parts. Their reputable services have been a staple in the Anchorage County, AK, area since 1981. They will also buy your vehicle, allowing you to unload your car for cash. Call (800) 770-6531 to speak with a helpful team member or visit them online for more on their inventory.