Your tire pressure must meet the requirements of the vehicle and tire manufacturer. Under normal circumstances, the vehicle's load and conditions of use are different, and the inflation pressure of the tire is also different.
The specified air pressure usually refers to the air pressure of the cold tire and cannot be lower than this value. The hot tire will have a higher air pressure due to the heat generated during driving. Do not lower the tire pressure when hot tires, because when the tire cools, its air pressure will be lower than the minimum allowable tire pressure.
Tire pressure should be checked and adjusted every 14 days (including spare tires, if equipped). It is necessary to check and adjust the tire pressure before making a long trip or vacation. According to the instructions, additional loads may result in the need for higher tire pressure.