How to Check the Wear Level of Car Tires?
2 Answers
Methods to check the wear level of car tires: 1. Observe the wear level of tire tread patterns: There are tread depth indicators in the tire's drainage grooves, approximately 1.6mm high. When the tread wears down to the level of these indicators, the tire needs to be replaced. 2. Observe the aging level of the tire surface: If the tire surface, including the sidewalls, shows a large number of cracks, even if the tire hasn't reached its normal lifespan, it should be replaced as soon as possible. Tires with cracks significantly increase the risk of a high-speed blowout. 3. Damage or bulging on the tire sidewall: Bulging indicates that the fabric or metal reinforcement layers in the tire sidewall have broken, which can lead to a blowout at any time, necessitating immediate tire replacement.
I make it a habit to check tire wear before and after driving—it saves money and gives peace of mind. The simplest method is visual inspection of tread patterns: each groove has wear indicator blocks, those small raised rubber bumps. If they’re flush with the tread surface, it usually signals severe wear requiring replacement. I also use a coin test—inserting a one-yuan coin into the groove. If most of the coin’s head remains visible, the tread depth is definitely below 1.6mm. Tactile checks matter too: running hands over the entire tire surface to detect bulges or cracks, especially the inner sidewall and shoulder areas prone to uneven wear. If the car pulls left or vibrates while driving, it might indicate tire imbalance. Regular pressure checks every 5,000 km are crucial since underinflation accelerates wear—seasonal adjustments are recommended, particularly monitoring winter pressures. Tires typically last five years; don’t wait until they’re bald. Safety first—I always notice sharper braking after tire changes.
