Replace Two Tires or All Four?

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Tires can be replaced either two at a time or all four. When replacing two tires, it is essential to replace the two on the same axle. Below are the relevant details. 2. From the perspective of pros and cons, it is better to replace all four tires simultaneously for a passenger vehicle rather than just two. When replacing all four tires, the friction levels are uniform, which naturally enhances vehicle safety. 3. Under normal usage conditions, tire replacement (excluding cases of uneven wear, damaged tires, bulging, etc.) should be based on actual wear conditions, but the principle is to replace tires on the same axle whenever possible. On one hand, tires on the same axle typically wear at a similar rate, making their replacement cycles consistent. On the other hand, if only one side is replaced, the differing friction coefficients between the two sides can negatively impact the vehicle's driving stability and braking performance. When replacing tires, both economic cost and practical usage should be considered, whether opting for two on the same axle or all four.