Do tires with fine cracks need to be replaced?
3 Answers
Tires with fine cracks need to be replaced, as failure to do so may lead to tire blowouts. The reasons for replacement are as follows: Typically, the lifespan of a tire is 3 to 5 years. Tires older than 3 years should be thoroughly inspected for signs of rubber cracking. If no cracks are found, they can still be used, but the tread wear should be monitored frequently. Precautions for tire usage: 1. Pay attention to the tire wear indicators. Each tire has wear indicators in the tread grooves. If the tire tread is level with the wear indicators, it means the tire needs to be replaced. 2. If the tire shows cracks or bulges, immediate replacement is recommended. Tire bulges occur when the cords inside the tire sidewall break, which can easily cause a blowout.
I've noticed that small cracks on tires are quite common, especially on those that have been used for several years. If there are only shallow cracks on the tread, like in my case where I mainly drive in the city, they can still be used for a while longer. However, it's important to regularly check if the cracks are getting longer or deeper. But if cracks appear on the tire sidewall, or if you see black powder inside the cracks, that's a sign of rubber aging, and it's best to replace them immediately. This is especially important when driving long distances on highways—a friend of mine once had a close call when the cracks on his tire suddenly worsened. Even if the cracks aren't deep, tires older than five years should be considered for replacement, as a blowout can be life-threatening. I make it a habit to check the condition of the cracks every time I wash my car—safety first.
For small cracks on tires, it's best to first check their location. Shallow cracks on the tread surface aren't a big issue - my own car has been driving like that for over half a year. However, if the cracks are on the tire sidewall, you need to be careful. That area bears significant pressure, and cracks can suddenly expand. Remember to measure the crack depth - insert a coin into it. If the crack is deeper than the edge of the coin, or if you can see the steel belt layer inside, you should replace the tire immediately. Pay extra attention during hot weather as rubber aging accelerates. I once experienced hearing strange noises while driving on the highway, only to discover upon stopping that small cracks had developed into large fissures. Although replacing tires costs money, it's much more economical compared to the potential losses from an accident on the road.
