suv轮胎胎压正常范围是多少？

What is the normal range of SUV tire pressure?

The normal range of SUV tire pressure is between 2.2 and 2.5 bar. According to national regulations, the range for standard-type tires is 2.4 to 2.5 bar, while for high-performance tires it is 2.8 to 2.9 bar, with a maximum pressure of 3.5 bar. Spare tires should have a higher pressure, usually above 2.5 bar.

Tire pressure needs to be adjusted according to the season. Based on the principle of thermal expansion and contraction, the pressure should be slightly lower in the summer and autumn due to the higher temperatures, while it should be higher in the winter and spring due to the lower temperatures. When the tire pressure is too high, it may cause damage to the center of the tire tread, reducing the life of the tire, and affect the comfort of driving by causing steering vibration and direction drift. It also reduces the resistance to puncturing when encountering sharp objects such as nails and glass. Therefore, the tire pressure should be kept within the normal range.

Factors that affect tire pressure:

Seasonal factors: In winter, the pressure should be increased by about 0.2 bar from the standard pressure. In summer, it should be at the lower limit of the standard pressure to prevent high-temperature explosions. Loading conditions: For an unloaded or half-loaded vehicle, the pressure should be at the lower limit of the standard pressure. For a fully loaded vehicle, it should be at the upper limit of the standard pressure.