This string usually begins with the letters "DOT" and is located on the outer sidewall of the tire. The "expiry" is not a fixed deadline but a recommendation; most manufacturers and safety experts suggest replacing tires six years from the manufacture date, even if they appear unused.
Tire Safety Inspection Steps: Locating the DOT Code and Checking Expiry
When inspecting your tires, look for cuts, bulges, or embedded objects that could compromise the structure. The last two digits represent the year, while the two digits preceding them represent the week of the year (ranging from 01 to 52).
To interpret this code, you must locate the Department of Transportation (DOT) identifier on the sidewall. For example, if the code reads "DOT XXXX 1224," the "24" indicates the year 2024, and "12" indicates the 12th week of that year.
How to Read the DOT Code for Tire Expiry and Safety
Because the inner sidewall can be difficult to access, you will almost always read the code from the outside. Furthermore, ensure that the valve stems are in good condition and that all tires, including the spare, are maintained at the pressure recommended by the vehicle manufacturer.
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