
Tires that are 6 years old can still be used depending on the condition. The service life of tires is generally between 6 to 8 years, with a maximum of up to 10 years. For 6-year-old tires, it is necessary to check the edges for rubber cracking. If no obvious cracks are found, they can continue to be used. Situations where tires should be discontinued include: 1. Tires must be stopped from use when worn to the wear limit indicator; 2. Aged tires; 3. Tires with deformed treads or damaged beads, tires with sidewall damage caused by running under-inflated, and tires corroded by chemicals should not continue to be used; 4. Bulging tires must not be used further; 5. Any other damage that affects the safety of tire use should also lead to discontinuation.

Using tires for six years, I must say the risk is considerable and strongly advise against continuing to use them. Rubber aging is a major issue; over time, the material becomes brittle and hard, especially under high summer temperatures or prolonged outdoor parking where UV rays accelerate cracking. Even if the exterior appears intact, internal structural degradation poses significant hidden dangers. I've witnessed multiple accidents caused by old tire blowouts, with severe consequences of loss of control at high speeds. During each maintenance check, it's recommended to have a professional measure the tread depth with a gauge—replace if it's below 1.6mm. Also, inspect the sidewalls for bulges or fine cracks; don't rely solely on daily wear levels. Safety comes first—spending on a new set of tires ensures smooth family trips. Parking in shaded areas can slow aging but doesn't replace the need for regular replacements.

My old car tires had been used for six years and I drove on them for a while longer. Later, I noticed a significant decrease in grip during cold starts in winter, and the scary skidding during turns really startled me. Thinking about it, I usually only drove slowly in the city, and parking in the garage slowed down the aging process, but micro-cracks still appeared on the sidewalls, so I had to replace them. I recommend you perform monthly self-checks on your tires: use a coin to measure tread depth, check the surface for gloss and any damage; maintain the correct tire pressure to prevent abnormal wear. If you feel increased bumpiness or unusual noise while driving, stop immediately to check. Safety first—don’t take chances. After replacing the tires, the driving experience became much more stable and comfortable.

From an economic perspective, whether to replace tires after six years requires careful consideration. A new set of domestic-brand tires may cost a few thousand yuan, but a blowout could double repair costs plus insurance premium hikes, making it less cost-effective long-term. If inspection shows mild tread wear and no cracks, short-distance urban driving carries slightly lower risks. Remember, safety investments matter—I prioritize tire replacement in my budget to prevent accidents.