Must car tires be of the same brand?

[StDelaney]

There is no regulation requiring tires to be of the same brand, but they must have the same tread pattern. Here are some relevant additional details: 1. Tire requirements: Tires on the same axle should be of the same specification, structure, manufacturer, and tread pattern (with matching load index and speed rating). If there is a significant difference in tread depth between a new tire and the old tire on the same axle, at least two tires should be replaced. When replacing only one tire, the new tire must have a tread depth close to that of the other tire on the same axle; otherwise, it may cause issues such as vehicle pulling to one side. 2. Replacement requirements: To ensure consistent performance of tires on the same axle, both tires on the axle should be replaced together, maintaining the same wear rate. However, if all tires have reached the end of their service life, a complete set of new tires can be installed instead of replacing them in pairs, which helps maintain the original handling balance more effectively.