How much air pressure should a typical car tire have?

Tire pressure should generally be between 2.2 and 2.5 kPa. In spring, the tire pressure is generally maintained at 2.3-2.5 kPa at around 20 degrees Celsius. However, as the temperature of the air and the road surface gradually increases, When driving at high speed or long distances, tire pressure can easily rise and cause a tire blowout; in summer, the road surface temperature may reach 60-70 degrees Celsius. If the tire pressure is too high while the car is driving on the road, it will easily blow out if it touches a weak spot in the tire. .

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

2. The air pressure is the lifeblood of the tire. Too high or too low will shorten the service life of the tire. Too low air pressure will increase the deformation of the carcass and easily cause cracks in the sidewalls. At the same time, flexing movement will occur, resulting in excessive heating, aging of the rubber, fatigue of the ply layer, and breakage of the cords. It will also increase the tire contact area and accelerate tire wear. Shoulder wear; too high air pressure will cause excessive stretching and deformation of the tire cords, and the elasticity of the carcass will decrease, which will increase the load on the car while driving. In case of impact, internal cracks and explosions will occur. At the same time, too high air pressure will also cause Accelerates tire crown wear and reduces rolling resistance.