Where to Find the Tire Date?
3 Answers
The DOT marking molded on the tire is followed by an 11-digit alphanumeric sequence representing the tire's identification or serial number. The last four digits of this serial number indicate the tire's production date. This date is formatted as four digits "AABB," where the first two digits "AA" represent the week of the year, and the last two digits "BB" indicate the year. Below is relevant information about tires: 1. Tire production date code format: The first two digits denote the production week, and the last two digits represent the production year. For example, 1204 means the tire was produced in the 12th week of 2004. Tires are circular elastic rubber products mounted on various vehicles or machinery, designed to roll on the ground. Typically installed on metal rims, they support the vehicle body, absorb external shocks, ensure contact with the road surface, and maintain driving performance. 2. Tires are often used under complex and demanding conditions, enduring various deformations, loads, forces, and extreme temperatures during operation. Therefore, they must possess high load-bearing, traction, and cushioning capabilities. Additionally, they require high wear resistance, flexibility, and low rolling resistance with minimal heat generation. Half of the world's rubber consumption is used in tire production, highlighting the significant demand for rubber in tire manufacturing.
I've been driving for over a decade and always pay attention to tire dates for safety. Near the wheel hub on the tire sidewall, there's a DOT-coded sequence. The last four digits indicate the production date – for example, 2318 means the 23rd week of 2018. Note that the date might only be printed on one side, so you'll need to crouch down and check both sides, using your phone's flashlight for better visibility. This date is crucial because rubber deteriorates over time. After 5-6 years of use, tires lose grip and become slippery in wet conditions. Once I overlooked that my tires were from 2014 and had been using them for 7 years. I noticed unstable handling on the highway and fortunately checked and replaced them in time. I recommend doing a quick visual check of the date monthly along with tread wear inspection to prevent accidents.
When I first started learning to drive, I was also confused about where to check the tire date. Later, an experienced friend taught me: look for the DOT code on the curved sidewall of the tire, the last four digits are crucial. For example, 0420 means the 4th week of 2020. After learning this, I regularly check my tires. Generally, tire lifespan is about 5 years, beyond which the rubber hardens, affecting braking performance. If you live in a high-temperature area, aging accelerates, so I check the date every six months. The first time might be tricky, but with good lighting and a squatting position, you'll get the hang of it quickly. Remember, never overlook safety details, especially when driving in cities with complex road conditions—old tires significantly increase risks.
