Is It Acceptable for the Four Tires of a New Car to Have Different Manufacturing Dates?
2 Answers
It is acceptable for the four tires of a new car to have slightly different manufacturing dates. 1. Analysis: It is normal for the production dates of new car tires to vary. However, the manufacturing year of the four tires should be the same, and the week numbers should generally not differ by more than one week. This is because the tires on a new car may not be from the exact same date but could be from the same batch, resulting in a slight time difference that causes the four tires to have inconsistent dates. Nevertheless, the difference should not be significant. If the dates vary too much, extra caution is advised. 2. Introduction: The manufacturing date refers to the date when a product completes all production processes, passes inspection, and is packaged as a finished product ready for sale in the market. All tires have manufacturing dates, which can be found on the outer sidewall of the tire.
For a new car with tires manufactured on different dates, as someone who often helps friends choose cars, I believe careful consideration is necessary. Minor differences, such as a one-month gap, might be acceptable, but a difference of more than six months warrants attention. Variations in rubber aging rates can affect braking stability and tire wear, making imbalance more noticeable at high speeds. Before taking delivery, it's best to check the DOT code on each tire—smaller numbers indicate earlier production, while larger numbers denote newer production. If the differences are significant, directly request the dealer to replace them with tires from the same batch to avoid potential risks. After all, consistent tires on a new car are ideal for protecting the rims and reducing maintenance hassles. Don’t just focus on appearance—safety is no small matter, and timely negotiation can save both worry and money.
