Is a tire without a production date a retreaded tire?
2 Answers
Tire without a production date is a retreaded tire. There is a set of 4-digit numbers on the sidewall of the tire, the first two digits indicate the week of the year, and the last two digits indicate the year. The following are precautions for using car tires: 1. Under-inflation will cause the outer part of the tire to wear faster than the inner part. This leads to reduced fuel efficiency and increased heat accumulation in the tire. Check tire pressure once a month with a gauge. 2. Over-inflation will cause accelerated wear in the center of the tire tread. Tire pressure must never exceed the maximum value listed on the side of the tire. 3. Wheel misalignment will cause uneven wear on the inside or outside, or result in uneven mild wear.
I was just researching tires recently and saw someone say that tires without a production date must be retreads, which is a bit absolute. In reality, if the worker installs the tire with the date side facing inward during installation, you naturally won't see it from the outside. Retreaded tires do grind off the original date, but prolonged use and wear can also cause the date to disappear. Last week when I went to the shop to replace my tires, the worker mentioned that if you can't find the date code on either side of a new tire, it might be a special batch or a factory defect. The key is to check the tire sidewall for any signs of grinding—retreaded tires feel particularly rough to the touch. It's advisable to supervise the workers during installation to ensure the date faces outward, making it much easier to check the aging date in the future.
