Tyre is the only part of the car that directly touches the ground, which has a direct impact on driving safety, driving comfort and fuel economy. The knowledge about tires is also one of the compulsory courses for every car owner. Introduce some knowledge about tire and summer tire maintenance for the majority of car owners.

For tires, they can be roughly divided into four-season tires, summer tires and winter tires. The difference is that they use different materials and tread patterns, so the effect is different.

The four-season tire can be said to be "all-weather", so it will be more moderate. At extremely low temperatures, the grip performance of four-season tires will also be weakened. However, due to the thermal expansion design of tire quality in summer, when the outdoor temperature reaches below zero degrees Celsius in winter, the traction of tire in summer will also decrease, even affecting normal driving.

Pay attention to air pressure:

As the saying goes, success is reserved for those who are prepared. Every summer, in some cities in China, the outdoor temperature even exceeds 40 degrees Celsius, and the road surface temperature even exceeds 70 degrees Celsius. Due to thermal expansion and contraction, the tire pressure will also increase in high temperature weather.

Different models will have different tire pressure ranges. There is a nameplate on the lower side of the B-pillar of the general car, and it is also explained in detail in the manual. If you run a long distance in summer, you can appropriately reduce the air pressure by about 0. 1.

Avoid prolonged exposure:

Direct sunlight will bring more heat. In hot weather, try to avoid long-term tire puncture. It is best to park the vehicle in a cool place to avoid premature tire aging caused by direct sunlight and high temperature.

Aging tires usually harden or even crack.

Avoid corrosion:

Rubber is one of the main components of tires, and chemicals such as oil and acid can cause problems such as tire corrosion, deformation and softening. Therefore, car owners should also try to avoid contact between tires and these items.

Replace the seriously worn tires in time;

A boss with a height of 1.6 mm is axially arranged at the bottom of the groove in five equal parts along the tire circumference on the crown. When the tire tread is worn to the bottom of the groove 1.6mm, this part of the groove begins to break, resulting in obvious cracks. So as to remind the driver that the tire must be changed. In order to facilitate inspection, there are two "△" signs on the shoulders of the two sides where the wear marks are buried, which are used to indicate the position of the tire wear marks of the tire pattern.

The principle of tire replacement:

If the tire has reached the wear limit, it should be replaced with a new tire in time. When replacing tires, only the tires with the same specifications (mainly section width and rim diameter) need to be replaced. And car owners who pursue performance can upgrade higher-end tires.

Daily use:

The service history of tires has exceeded 100 years, and the corresponding technology has been relatively mature. If the car owners and friends use it every day, as long as they maintain it reasonably, drive normally, don't challenge the limit of the tire, and slow down properly when encountering bumpy roads, the final performance of the tire will not let us down.