Tires are the only parts of a car that come into contact with the ground. Therefore, tires are called car shoes, but the tires not only act as a pair of shoes, it is also related to the performance of all aspects of the car.
First, the tires affect the safety of the car. Many traffic accidents are caused by tire quality problems or the inability of tires to work; secondly, tires affect the controllability and comfort of vehicles. Vehicles are driven by tires. Therefore, the controllability of tire influence vehicles is correct. The tire's vibration damping, cushioning effect and the transmission of road feeling will also affect the comfort of the vehicle, including the wind noise generated by the vehicle during driving, which is commonly known as "fetal noise" and will also affect the comfort of the vehicle. In addition, tires also affect fuel consumption. Tyres can also affect fuel consumption. Usually, if the tire pressure is too low, the car's fuel consumption will certainly increase. Wide tires increase grip and are good for skidding and cornering, but wide tires also increase fuel consumption because the widening of the tire increases the rolling friction that the car has to overcome when driving.
But tires are consumables, just like printer consumables, but tires have a long life, and there are three standards for changing tires:
1, the tire to the wear limit, is a small step in the tread groove is not separated by a certain distance, about 1.6mm high. This is the wear limit sign. Tire pattern wear equal to the height of the platform means that the tire has reached the wear limit. When it is used again, the tire's grip cannot be guaranteed. Obviously, the brake distance is extended or even the brakes cannot be stopped. It is easy to slip in rainy days;
2, the tire production date from the date of manufacture within 3 years; 3 years after the tire rubber aging, aging tires are all indicators have declined, safety, even if the tread pattern is still very deep, it must be promptly replaced ;
3, tires found in the tire side from the package, this is because the tire carcass structure of the broken cord, if you run high-speed, easy to puncture.
Under normal driving conditions such as 2.5 to 30 thousand kilometers per year, tyres with wear resistance can be changed around 70,000 kilometers. If you choose comfortable tyres, it is recommended that you change 5-6 million kilometers. If you do not open 10,000 kilometers or so a year, it is recommended that you change from three years to four years.