Many drivers regularly monitor tyre pressure and tread depth, but few remember to check the tyre expiry date. Tyres deteriorate with time, even when unused. Driving on expired tyres can reduce grip, increase the risk of blowouts, and compromise safety. Understanding how to check your tyre’s expiry date ensures timely replacement and safer driving.
Locate the DOT Code on the Tyre
Every tyre carries a DOT code (Department of Transportation code) on its sidewall. This alphanumeric sequence reveals where and when the tyre was produced.
To find it:
- Look at the sidewall of your tyre.
- Identify the code starting with “DOT.”
- Note the last four digits — they show the manufacturing date.
For instance, a tyre marked DOT X2AB 2319 was made in the 23rd week of 2019, which is around June 2019.
Understand the Tyre Manufacturing Date
The final four digits of the DOT code contain useful data:
- The first two numbers indicate the week of production.
- The last two represent the year.
Examples:
- 4520 = 45th week of 2020.
- 0118 = 1st week of 2018.
Knowing this helps determine the tyre’s age, even when it appears new from the outside.
Know When Tyres Expire
Most manufacturers advise replacing tyres every five to six years from the production date, regardless of visible wear. The total maximum lifespan, including storage, is about 10 years.
If your tyre was produced in 2018, consider changing it by 2023 or 2024. Environmental factors like sunlight, heat, and road quality can cause tyres to degrade sooner.
Check All Tyres Individually
Each tyre may have a different production date, especially if bought separately. Inspect the DOT code on all four — both front and rear tyres. Replace any that are older than six years to ensure uniform safety and performance.
Watch for Ageing Signs
Besides checking the tyre expiry date, look for wear indicators such as:
- Cracks on the sidewall
- Bulges or bubbles
- Dry rot or fading
- Uneven tread wear
If any of these signs appear, replace the tyre immediately — even if it hasn’t technically expired.
Consult a Tyre Dealer or Mechanic
If you struggle to locate or read the DOT code, consult a tyre dealer or mechanic. They can confirm the manufacturing date and ensure that tyres in stock are recent. When buying new ones, make sure they’re less than 12 months old from their production date.
Understanding and checking your tyre expiry date regularly not only extends tyre life but also enhances road safety, fuel efficiency, and driving confidence.
