What are the criteria for tire replacement?
2 Answers
Tire replacement criteria are: 1. When the tire rubber has aged to the critical point of deterioration; 2. When the tire has worn down to the wear indicator; 3. When the tire sidewall bulges or the tread deforms and swells; 4. When the tire has a leak that cannot be repaired; 5. When the tire produces unexplained noises, uneven wear, misalignment, or abnormal wear during driving. The method for replacing a tire is: 1. Park the vehicle, turn off the engine, and engage the handbrake to prevent sliding; 2. Loosen the screws in a diagonal pattern; 3. Lift the vehicle to a certain height; 4. Remove the screws and take off the tire; 5. Install the new tire and tighten the anti-theft screws in a diagonal pattern; 6. Lower the vehicle and tighten the screws and nuts.
After driving for so many years, I've always believed that tire replacement depends on several factors. The most direct one is the degree of tire wear. There are small raised points in the tread grooves, which are wear indicators. When the tread depth is less than 1.6 millimeters and the indicators become visible, it's time to replace the tires; otherwise, they can easily slip in rainy conditions. Another important factor is the age of the tires. I usually check them every 6 years or so because rubber can age and become brittle, leading to cracks or bulges that need immediate attention. Safety comes first, and I find it practical to regularly test tread depth myself using a coin. Insert the coin into the groove; if the edge of the coin is visible, it's time to replace the tires. When driving, if you feel instability during steering or braking, it might be a tire issue—don't delay. Remember to check the tire pressure before replacing tires, as this can extend their lifespan.
