What is the normal tire pressure for run-flat tires?

[LilaDella]

Standard tires have a recommended pressure of 240kpa-250kpa, while reinforced tires should be inflated to 280kpa-290kpa. Note that cold tires and hot tires have different pressures, with hot tires being about 20kpa higher than cold tires. The manufacturer's recommended value refers to cold tire pressure, which should be around 230kpa-250kpa when the vehicle is cold. However, always refer to the specific pressure marked for each vehicle. The reasons are as follows: 1. Tire pressure is a crucial factor affecting tire lifespan and fuel efficiency. Improper tire pressure selection can cause power cycling, increasing tire wear and reducing service life. Considering its impact on vehicle performance, selecting the appropriate tire pressure is essential for extending tire life and improving economy. 2. Tire pressure is significantly affected by seasonal factors. In summer, high temperatures cause tires to heat up during driving. Excessive pressure may lead to blowouts, so slightly lower pressure is recommended. In winter, tire pressure should be slightly higher than in summer due to thermal contraction and expansion. A winter tire pressure between 250kpa-280kpa is generally appropriate.