The tire serial number is the best way to determine how old a tire is. The serial number is sometimes called a DOT Code.
- The end of the serial number has a 4-digit number.
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- This is the date of manufacture.
- The first 2 digits are the week.
- The last 2 digits are the year.
- For example: a code of "2314" means the tire was made in the 23rd week of 2014.
- If you have a tire with a 3 digit number in the serial number, it was manufactured before the year 2000.
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- These tires should be replaced, regardless of tread depth.
- Most experts recommend replacing your tires every 6 years regardless of wear.
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- The rubber can become brittle over time, increasing the chances of a blow-out.
- Sometimes the serial number will be located on the inside of the tire.
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- To check for the serial number, you can remove the tire or ask your service professional or tire shop.
- Don't forget to check your spare tire too!