What is the appropriate range for tire pressure?
2 Answers
Tire pressure is generally appropriate around 2.2 to 2.5 bar, slightly lower in summer and relatively higher in winter. Additionally, since the front wheels bear the engine's weight long-term, their pressure should be about 0.1 bar higher than the rear wheels. Spare tires, which are rarely used, should maintain higher pressure to avoid losing their emergency function due to low pressure; typically, it should be above 2.5 bar, adjusted to the proper level when in use, and reinflated to high pressure afterward. Cold and hot tires have different pressures, with a difference of about 0.2 bar, so measurement should be noted accordingly. To determine the optimal tire pressure, refer to the data provided by the vehicle manufacturer, as it is derived from comprehensive considerations and is highly suitable.
What is the appropriate tire pressure range? I think it depends on your vehicle type and daily usage. I've been driving a sedan for many years and always follow the recommendation on the door pillar sticker, keeping it around 32 to 35 PSI, which is quite universal and suitable for sedans. For SUVs or pickup trucks, it should be higher, around 35 to 40 PSI, and can be adjusted even higher when carrying heavy loads. I make it a habit to check the pressure with the free gauge at the gas station every time I refuel, especially when the tires are cold—that means measuring after the car has been parked for several hours. Too low pressure increases the risk of a blowout and causes uneven wear, while too high pressure affects comfort, making the ride bumpy. Regular checks also save fuel and extend tire life. Don't underestimate this small detail—it really impacts driving safety.
