There are several signs you can look for to determine whether your vehicle’s tires need to be replaced. Regular tire maintenance is essential for safety, so it’s important to keep an eye on tire wear and other potential issues. Here are the key indicators:
1. Tire Tread Depth
Tread Wear Indicator Bars: Most modern tires have small raised bars built into the grooves of the tread. If the tread is worn down to the level of these bars, it means the tire is at the end of its useful life and should be replaced.
The Penny Test: A simple way to check tread depth is by using a penny. Insert the penny into the tread groove with Lincoln’s head facing down. If you can see the top of Lincoln’s head, the tread is too shallow, and it’s time to replace the tires.
2. Uneven Tire Wear
If the tread is more worn in some areas than others, it could indicate alignment or suspension issues. For example, if the edges of the tire are more worn than the center, it could mean the tires are under-inflated. If the center is more worn, the tires might be over-inflated. Uneven wear also suggests that the tire needs attention, and you may need to replace it.
3. Cracks or Bulges in the Sidewalls
Visible Cracks: Inspect the sidewalls of the tires for visible cracks or cuts. These can be caused by age, exposure to the sun, or road hazards. Cracks can weaken the tire and cause a blowout.
Bulges or Blisters: If you notice any bulges or blisters on the side of the tire, this is a serious issue. Bulges typically result from an impact that has caused the tire’s internal structure to weaken. A bulging tire should be replaced immediately.
4. Vibration or Noise
Vibrations: If you feel unusual vibrations while driving, it could be a sign that the tires are worn unevenly, or there may be other mechanical issues with the vehicle. This could mean the tires need balancing or replacing.
Noises: Loud noises coming from the tires may indicate significant wear or damage. A humming sound could indicate uneven wear, while a thumping noise might point to a tire with internal damage.
5. Age of the Tire
Even if the tread appears to have sufficient depth, tires degrade over time due to factors like heat, UV exposure, and general wear and tear. The general rule is to replace tires every 6-10 years, depending on the manufacturer’s recommendation. You can find the tire’s manufacturing date on the sidewall, in the form of a 4-digit code (e.g., 3519 = the 35th week of 2019).
6. Loss of Air Pressure
Frequent Low Tire Pressure: If you are constantly having to add air to a tire, it could indicate a slow leak or other damage, even if no visible punctures are apparent. If a tire consistently loses air, it’s time for a replacement.
7. Punctures and Repairs
If a tire has a puncture that cannot be repaired (typically if it’s larger than 1/4 inch in diameter or located in the sidewall), the tire should be replaced. It’s also important to note that tires that have been patched multiple times may no longer provide the same level of safety, and you should consider replacing them.
8. Flat Spots
If you experience a flat spot, where the tire seems to be “out of round” (due to severe braking or suspension issues), the tire may be damaged beyond repair.
9. Performance Degradation
If your tires no longer provide good grip on wet or icy roads or if your braking distance increases, it’s a sign that the tires are worn out and need replacing. Tires with low tread are especially dangerous in wet or snowy conditions.
When to Replace Tires:
If you notice one or more of the above signs, it’s time to start shopping for new tires. Check out our current Savings on Tires! Don’t wait for a tire to fail unexpectedly—regular inspections and early replacement can help keep you safe on the road. If you’re unsure about the condition of your tires, it’s always a good idea to have a professional mechanic or tire technician inspect them for you.
One Final Recommendation:
Make sure to rotate your tires regularly (typically every 6,000 to 8,000 miles) to help ensure even wear.