When it comes to vehicle safety, tire age matters just as much as tread depth. Many drivers don’t realize that even if a tire looks fine on the outside, it could still be unsafe due to age. At Nock’s Tire & Auto in Pocomoke City, MD, we help drivers understand how old their tires are and when it’s time to replace them.
Driving on aging tires can increase the risk of cracks, tread separation, and even blowouts. Knowing your tire’s “birthday” is an important step in protecting yourself and your passengers.
Why Tire Age Is Important
Tires naturally break down over time. Even if you don’t drive often, rubber compounds deteriorate due to:
- Heat and temperature changes
- Sunlight and UV exposure
- Moisture and humidity
- Normal oxidation
As tires age, the bond between the rubber and internal steel belts weakens. This can lead to dry rot, internal cracking, and structural failure—sometimes without obvious warning signs.
Most manufacturers recommend having tires professionally inspected once they reach six years of age, and replacing them no later than ten years from the date of manufacture, regardless of tread wear.
How to Check the Age of Your Tire
You can determine your tire’s age by locating the DOT (Department of Transportation) code stamped on the sidewall.
Understanding the DOT Code
The last four digits of the DOT code tell you when the tire was manufactured.
For example:
4718
- The first two digits (47) represent the week of production
- The last two digits (18) represent the year
In this case, the tire was manufactured in the 47th week of 2018.
Signs of Aging Tires
Even before reaching the 10-year mark, older tires may show warning signs such as:
- Cracking in the sidewall
- Dry, brittle rubber
- Vibration while driving
- Bulges or visible damage
- Frequent air pressure loss
However, not all internal damage is visible—which is why regular inspections are so important.
Extend the Life of Your Tires
While you can’t stop time, you can help your tires last as long and safely as possible with proper maintenance:
- Routine tire rotations
- Tire balancing
- Wheel alignment
- Maintaining proper tire pressure
- Prompt repair of punctures
Consistent maintenance prevents uneven wear and helps you get the most value from your investment.
Don’t Guess—Have Your Tires Checked
Every tire has an expiration timeline, even if it looks perfectly fine. If your tires are approaching six years old—or you’re unsure of their age—schedule an inspection at Nock’s Tire & Auto today.
