
Car tires should be replaced after 60,000 to 100,000 kilometers. Other situations that require tire replacement include: 1. Tire deformation; 2. Severe damage to the tire body; 3. Severe damage to the tread; 4. Damage to the bead; 5. Bulging or cracking on the tire sidewall; 6. Damage from running flat; 7. Tires patched more than three times; 8. Tires worn to the wear limit; 9. Chemical corrosion; 10. Severe aging and peeling. Tires are circular elastic rubber products mounted on metal rims, designed to support the vehicle body, absorb external shocks, maintain contact with the road surface, and ensure driving performance.

Generally, it is recommended to inspect and replace tires every 50,000 to 60,000 kilometers. My family car has been running for over five years and has covered more than 60,000 kilometers. During a recent check at the 4S store, the technician pointed out that the tire treads were significantly worn, especially the front tires. They used a tread depth gauge to measure and found the treads were below the safety limit. Even if the mileage hasn’t reached the recommended threshold, tires should be replaced early if you notice sidewall bulges, tread cracks, or if they’ve been patched more than three times. This time, I gritted my teeth and replaced all four tires. Now, the car feels much more stable on highways, and I have more confidence braking in rainy conditions. After all, tires are the first line of safety—never skimp on them.

The old mechanic taught me to check tire lifespan by focusing on three aspects: wear condition, aging cracks, and usage time. Now our family SUV has run over 70,000 kilometers, and upon close inspection, the tread blocks are almost worn flat. While driving in the city doesn't reveal much, I realized the tires' poor grip when the car slightly skidded during a sudden heavy rain on the highway last time. Regularly rotating tire positions is a good habit - I basically swap the front and rear tires every 10,000 kilometers. Tires typically have a shelf life of about five years; even with low mileage, they'll age and harden. When you see fine cracks on the tire sidewalls, it's time to replace them.

Last time I saw professional test data on an automotive forum, tire performance significantly declines after 40,000 kilometers. When my own car reached 50,000 km, I specifically measured the wet braking distance, which was 5-6 meters longer than when new. To check tread wear, focus on the small raised blocks in the main drainage grooves - if they're worn flush with the tread surface, it's definitely time for replacement. Road conditions make a big difference; for example, my tires wear much faster driving frequently on mountain roads compared to city driving. Tire pressure is also crucial - chronically underinflated tires wear out faster.

The repair shop guy told it straight: whether to replace tires depends on your wallet and courage. The money-saving way is to maintain proper tire pressure and rotate the tires every six months, which can extend their life by 20,000 kilometers. But don't hesitate if you notice these signs: uneven tread wear, tread depth less than 1.6 millimeters, or tire bulges. Last month, my neighbor replaced his tires after just 20,000 kilometers because a stretch of gravel road on his trip home left a deep cut in the tire sidewall. New drivers should keep a tread depth gauge handy—monthly checks are the easiest way to stay safe.

My father-in-law, who has been driving trucks for over 30 years, says tires are like shoes - only you know if they fit properly. For daily inspections, focus on these key points: check for nails in the tread, bulges on the sidewalls, and tread depth. You can measure tread depth with a coin - insert a one-yuan coin into the tread, and if you can see the top of the chrysanthemum pattern, it's time for new tires. Pay extra attention to vehicles parked outdoors year-round, as rubber hardens and cracks after three to four years of sun exposure. Last time I had a tire blowout on the highway was due to unnoticed sidewall cracks, which nearly caused a serious accident. Now I pay special attention to tire condition every 40,000 kilometers.


