Metairie Auto Repair

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Tag Archives: DOT number on tire. tire age

How Old Are Your Tires?

How Old Are Your Tires?

Many times we find new customers with old and dry rotten tires on their vehicles. Dry rotten tires can be just as much of a safety risk as a worn tire. A tire that is dry rotten is much more likely to fail from tread separation than a tire that is less than 5 years old. All Department of Transportation certified tires have a serial number molded or branded into the sidewall. This number is referred to as the DOT number or the Tire Serial Number. DOT numbers are 8 to 13 digits long and identify: 1) the manufacturing location of the tire 2) the tire size and manufacturers code 3) the week and year the tire was produced If you are looking at the sidewall of a tire you can easily tell the manufacturing location, and tire size without decoding the DOT number, however nowhere on the tire besides the DOT will tell you the age. When looking at t ... read more

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