What should be the air pressure of car tires?

Generally, the tire pressure should be normal between 2.2-2.5 kPa, and it should be kept at 2.3-2.5 kPa around 20 degrees in spring. However, with the gradual increase of air temperature and road surface temperature, the tire pressure is easy to rise when driving at high speed or long distance, which is easy to cause tire puncture. In summer, the road temperature will probably reach 60-70 degrees Celsius. If the tire pressure is too high when the car is driving on the road, it is easy to puncture if it touches the weak part of the tire slightly.

1, tire pressure, strictly speaking, refers to the pressure of air inside the tire. The engine is the heart of the car in car maintenance, and the damage of the engine will lead to the exhaustion of the life of the car, so the tire pressure is the blood pressure of the car, and the level of tire pressure plays a vital role in the performance and power of the car.

2. Air pressure is the key to tire. Too high or too low will shorten the service life of tires. If the air pressure is too low, the deformation of the carcass will increase, and cracks will easily appear on the sidewall, and buckling and deflection will occur at the same time, which will lead to tire overheating, rubber aging, tire cord fatigue and cord breakage, increase tire contact area and accelerate tire shoulder wear. If the air pressure is too high, the tire cord will be excessively stretched and deformed, and the elasticity of the carcass will decrease, which will increase the load when the car is running. Once hit, it will cause internal cracking and explosion. At the same time, too high air pressure will accelerate tire crown wear and reduce rolling resistance.