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What is the standard tire pressure?

1 Answers

MiaDella

07/30/25 5:00am

According to the provisions and requirements of the international GBT2978-2008 standard, the standard tire pressure is 2.4-2.5bar. Reference standards for adjusting tire pressure: When the vehicle is unloaded or partially loaded, it is more appropriate to adjust the tire pressure according to the lower limit of the standard tire pressure value; when the vehicle is fully loaded, the tire pressure should be adjusted according to the upper limit of the standard tire pressure value. When the tire is new, the tire pressure should be increased by about 0.2bar according to the standard tire pressure of the car tire; for old tires, the tire pressure should be appropriately reduced according to the standard tire pressure of the car tire. If the wear is severe, the lower limit of the standard tire pressure should be followed. For comfort-type soft tires, the standard tire pressure should be appropriately increased by about 0.2bar; for performance-type hard tires, the lower limit of the standard tire pressure should be followed. Time for adjusting tire pressure: Generally, the tire pressure should be checked at least once a month, and adjustments should be made with each season. The ideal times to adjust tire pressure are November and May. In November, as winter approaches, tire pressure usually decreases and needs slight adjustment. In May, as the weather starts to warm up, it is advisable to check if the tire pressure is normal. Special attention should be paid to ensuring that the tire pressure does not exceed the standard range, and there is no need to deliberately reduce the tire pressure. If the tire is not underinflated, monthly adjustments are unnecessary.

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