When Should You Change Your Tires?
Knowing when to replace your tires is critical for safety, performance, and ride quality. While tires don’t come with an exact expiration date, wear, age, and driving conditions all play a role in deciding when it’s time for new ones.
When Do Tires Need to Be Replaced?
Most tires should be replaced due to either tread wear or age. Even tires that look fine can become unsafe over time.
- Tread Wear: Tires are considered unsafe once tread depth reaches 2/32". New tires typically start with 9/32"–11/32".
- Tire Age: Most manufacturers recommend inspection after 6 years and replacement by 10 years, regardless of tread.
You can check the tire’s manufacturing date using the DOT code on the sidewall, which shows the week and year the tire was made.
Why Replacing Tires Matters
Worn or aging tires reduce traction and increase stopping distances, especially in wet or winter conditions. They also raise the risk of blowouts and uneven handling.
- Reduced grip and braking performance
- Higher risk of hydroplaning
- Increased chance of tire failure
Common Causes of Tire Damage
Tire lifespan varies depending on several factors, including:
- Driving habits (hard braking, high speeds)
- Road conditions (potholes, curbs, debris)
- Climate (extreme heat or cold)
- Improper inflation or lack of rotations
Signs You Need New Tires
- Low tread depth: Fails the penny test or measures 2/32" or less
- Sidewall cracks or dry rot: Often caused by age and sun exposure
- Bulges or bubbles: Indicates internal damage—replace immediately
- Vibration or uneven wear: May point to alignment or balance issues
- Nails or punctures: Especially near the sidewall
Choosing the Right Replacement Tires
When selecting new tires, consider how and where you drive. Match the tire type to your vehicle, climate, and driving style.
- All-Season: Balanced performance for most conditions
- All-Weather: Better winter traction with year-round use
- Winter Tires: Designed for snow and freezing temperatures
- Summer Tires: Best handling in warm, dry conditions
- All-Terrain / Mud-Terrain: Ideal for trucks and off-road use
New vs. Used Tires
While used tires may cost less upfront, they carry higher risks. Hidden damage, reduced tread life, and unknown history can compromise safety. New tires offer predictable performance and reliability.
Don’t Forget Your Spare
Spare tires also age, even if unused. Check the DOT date and inspect for cracks or stiffness. An old spare may not be safe when you need it most.
Frequently Asked Questions
How often should tires be replaced?
Most drivers replace tires every 3–5 years, depending on mileage, tire type, and maintenance.
Do all four tires need to match?
Ideally, yes. Tires should be the same size and category. AWD vehicles typically require all four tires to be replaced at the same time.
How can I make my tires last longer?
- Check tire pressure monthly
- Rotate tires every 6,000–8,000 miles
- Keep your vehicle properly aligned
If you’re unsure whether it’s time for new tires, a professional inspection is the safest next step.