Determining the age of a tire involves deciphering a specific code embossed on its sidewall. This code, mandated by the Department of Transportation (DOT), provides valuable information about the tire’s production. The final four digits of the DOT code indicate the week and year the tire was produced. For example, a code ending in “2023” signifies the tire was manufactured in the 20th week of 2023.
Understanding the manufacturing date of tires is crucial for safety and optimal performance. Rubber compounds degrade over time, even when tires are not in use. Older tires can experience decreased grip, increased susceptibility to cracking, and a higher risk of failure. Consequently, knowing the production date allows consumers to make informed decisions about tire purchases, ensuring they are using tires that are within their safe and effective lifespan. Historically, awareness of this coding system has evolved, leading to greater consumer protection and improved tire safety standards.