
There is no specific regulation on how many years a car tire can last. The main factors affecting the lifespan of a car tire are as follows. 1. Tire Pressure: Higher tire pressure reduces the contact area between the tire and the ground, causing localized wear in the middle of the tire and shortening its lifespan. Conversely, if the tire pressure is too low, the tire shoulders come into greater contact with the road, leading to severe wear on both sides of the shoulders and significantly reducing the tire's lifespan. 2. Tire Usage Rate: Tires are made of rubber material, which has a shelf life. Over time, rubber deteriorates more severely, naturally leading to a significant reduction in the tire's lifespan.

It's really hard to give an exact number for how long tires can last. I've changed my tires twice in four years of driving. Some friends changed theirs after five years, while others wore them out in just two. Actually, mileage is a more reliable indicator than years. I commute 50 kilometers daily, so my tires wear out faster. Tires on cars that frequently drive on highways or brake hard wear out even quicker. Rubber aging is another issue. Once, I saw my neighbor's tires covered in fine cracks on the sides. He said he hadn't changed them in six years, and while the tread was still deep, he didn't dare use them anymore. A mechanic taught me to check tread depth and sidewall cracks every six months, and to look for bulges after driving over bumps. If a tire has been patched more than three times or has sidewall damage, it's time to replace it immediately. With proper maintenance, tires can last five to six years in city driving, but even if they haven't been used much after six years, they should be thoroughly inspected.

Last time I took my car for maintenance, I asked the technician about tire lifespan, and he said it mainly depends on three factors: wear, aging, and damage. For my dad’s rarely driven old car, the tires had been used for seven years. They looked fine on the surface but felt extremely hard to the touch, and made loud noises when going over speed bumps. The technician said the rubber had aged and become brittle, increasing the risk of a blowout. Cars that frequently drive on construction sites are even harder on tires—stones and metal scraps can easily puncture them. In our neighborhood, there’s a ride-hailing car that covered 150,000 kilometers in three years, and its treads were almost completely worn down. Temperature also plays a big role; intense sun exposure in the south accelerates aging. During maintenance, remember to ask them to rotate the tire positions—even wear across all four tires extends their lifespan. You can also check the tread depth yourself using a coin: if the top of the national emblem is visible when inserted into the groove, it’s time to replace the tires.

There's no fixed lifespan for tires. I have a friend in transportation whose truck tires need replacement every year due to daily heavy loads. For regular passenger vehicles, tire manufacturers recommend inspection and replacement around five years. Check the four-digit week/year code on the tire sidewall - for example, 3423 means the 34th week of 2023. Frequent full-load trips or underinflation accelerate wear significantly. Last time my sidewall got scraped by a curb, I replaced it despite deep treads - safety first! Winter tires used six months and stored six months actually last longer, while all-season tires wear faster with year-round use. Never install repaired tires on front wheels - I learned that the hard way.


