What are the key points to pay attention to when changing car tires?

[DiSabrina]

When changing car tires, the key points to pay attention to are: 1. Tire shelf life: Tires should not be stored for more than 3 years from the production date. There are 4 digits near the wheel hub on the tire sidewall indicating the production date; 2. Tire tread pattern and color: Worn tires have shallow treads, while retreaded tires often appear unnaturally bright in color; 3. Tire hairs: Original new tires have many small rubber hairs on the surface, which cannot be replicated on retreaded tires; 4. Scratch test with a key: Retreaded tires that have been used for a long time will show marks when lightly scratched with a key; 5. Junction between tread and sidewall: New tires have smooth and even junctions, while retreaded tires have manually attached treads to old carcasses; 6. Raised markings on original tires: Authentic new tires have integrated markings that cannot be easily removed, whereas retreaded tires have markings that can be peeled off by hand.