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Car Repairs

Think Your Tires Are Safe? Here’s the One Check Most Drivers Ignore

April 6, 2025
By Drew Blankenship
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tires are safe
Image Source: 123rf.com

Tires are the unsung heroes of car safety—literally the only part of your vehicle that touches the road. While most drivers know to check air pressure and tread depth, there’s one critical inspection that gets overlooked far too often: the tire’s age. Even tires that look perfectly fine can become dangerously unsafe over time, leading to blowouts, poor traction, and costly accidents. Here’s why checking your tire’s manufacture date might be the most important safety move you make this year.

1. Why Tread Isn’t the Whole Story

Most drivers are taught to check their tire tread using a penny or tread gauge. While tread is essential for traction, especially in rain or snow, it’s not the only sign of tire health. A tire with deep tread can still be structurally unsafe if it’s too old.

Rubber compounds degrade with time, regardless of mileage. UV exposure, heat, humidity, and even storage conditions break down the tire’s internal structure. So even if your tires look fine and drive fine, they may be one road trip away from failure.

2. How to Find Your Tire’s Real Age

Every tire has a DOT (Department of Transportation) code printed on the sidewall. At the end of this string of numbers, you’ll find a 4-digit code—for example, “2719.” This means the tire was manufactured in the 27th week of 2019.

Experts recommend replacing tires that are more than 6 years old, even if they haven’t hit the mileage limit. After 10 years, tires are considered expired and unsafe, no matter what condition they appear to be in. This small check can help you avoid major risks.

3. Old Tires Can Lead to Dangerous Blowouts

One of the scariest consequences of using aged tires is the risk of a blowout. As tires age, their internal structure weakens, making them more susceptible to sudden failure, especially at highway speeds or in extreme temperatures.

Blowouts can cause loss of control, crashes, or even rollovers. Many high-profile vehicle recalls and fatal accidents have been linked to tire aging. The worst part? It’s preventable with a 30-second glance at your tire’s date code.

4. They May Have Been Old When You Bought Them

Just because you bought a “new” tire doesn’t mean it was freshly made. Tires can sit in storage for months—or even years—before being sold. Unfortunately, not all retailers disclose this, and the shelf life begins the moment a tire is manufactured, not the day it’s installed.

Always check the date code before purchasing. If a tire is already 2-3 years old at the time of sale, you’re losing valuable life and potentially buying into a shorter window of safety.

5. Spare Tires and Little-Used Cars Are Often the Culprit

Your spare tire or that weekend convertible in the garage might not get much use, but time still takes its toll. Spare tires, in particular, are rarely checked, yet they age just like the ones on the road. In an emergency, an expired spare can put you at serious risk.

If you’re driving a car that sits unused for long stretches, it’s easy to assume the tires are fine because of the low mileage. But age, not usage, is what matters most in these cases. Check the dates and replace them if they’ve passed their safe lifespan.

6. Heat and Climate Accelerate Tire Aging

If you live in a hot climate like Texas, Arizona, or Florida, your tires age faster than in cooler regions. High heat accelerates the breakdown of rubber compounds, increasing the risk of sidewall cracking and separation.

Tires in these environments may need to be replaced sooner, even if they haven’t reached the typical 6-year threshold. It’s not just about driving distance; it’s about exposure. This makes age-checking even more critical for Southern drivers.

7. Worn but “Younger” Tires Are Still Safer Than Old and Unused Ones

Ironically, tires that are driven regularly and worn down within a few years can be safer than ones with full tread that have been sitting unused for 8+ years. Driving helps maintain tire flexibility and heat cycles the rubber evenly, keeping it in better shape—up to a point.

Once the tire passes the 6–10 year window, even with great tread, it becomes a risk. If you’re deciding whether to replace a tire, age should carry just as much weight as wear. It’s a better investment in safety than most people realize.

8. What to Do Next: The 3-Step Safety Check

If this article made you curious about your tires, good! Take 5 minutes and follow these three simple steps:

  1. Check air pressure—underinflation is a common cause of premature tire wear.

  2. Check tread depth—use a penny or tread gauge.

  3. Check the DOT code—look for that 4-digit number to find the manufacturer’s week/year.

If your tires are over 6 years old, it’s time to talk to a tire professional. And if they’re 10 years or older? Replace them immediately—no matter how “new” they look.

Don’t Let Time Be the Weakest Link in Your Safety

Tire age is the safety check most drivers ignore—but it could be the one that saves your life. Blowouts and breakdowns don’t always come from worn tread—they often come from old rubber silently breaking down over time. Stay ahead of hidden hazards by checking your tires today.

Read More

Tire Warning Signs: 10 Cues You Are About To Have A Blowout And What To Do

These Are The Best American Tire Makers and Here’s Where To Find Their Tires

About Drew Blankenship

Drew Blankenship is a former Porsche technician who writes and develops content full-time. He lives in North Carolina, where he enjoys spending time with his wife and two children. While Drew no longer gets his hands dirty modifying Porsches, he still loves motorsport and avidly watches Formula 1.

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