How long is the lifespan of a car tire generally?

[DelDiana]

Tire lifespan is generally 4 to 6 years or 60,000 to 100,000 kilometers. The wear condition of tires varies, leading to different usage durations. Tires must be replaced immediately when the tread depth is below 1.6mm. The lifespan also depends on the tire material. Tires are made of rubber, which oxidizes in the air. After oxidation, rubber hardens, leading to a continuous decline in traction. Conditions for tire replacement: For private cars, tire replacement is generally unrelated to mileage but related to time. If the car is mostly parked in an open-air parking lot, tires should be considered for replacement after 4 years. Even if parked in a garage, tires should be replaced after 6 years because the tread rubber has aged. At any time, if fine cracks are found on the tire sidewalls, the tires should be replaced immediately.