Where is the 2.5 on the tire pressure gauge?

[SanAmara]

The 2.5 mark on the tire pressure gauge is located in the upper left corner. Below are specific instructions for adjusting car tire pressure: 1. Rough roads: On roads with significant bumps, it is advisable to reduce the tire pressure by 0.1-0.2bar below the standard tire pressure. For long-distance high-speed driving, the tire pressure should not be too low; instead, increase it by approximately 0.2bar above the standard tire pressure lower limit. 2. New vs. old tires: For new tires, the pressure can be increased by about 0.2bar above the standard. For old tires, it is appropriate to reduce the pressure slightly below the standard; if the wear is severe, use the lower limit of the standard tire pressure. 3. Summer and winter: In winter, it is recommended to increase the tire pressure by about 0.2bar above the standard. In summer, use the lower limit of the standard tire pressure. If the car is parked outdoors in summer, the pressure can generally be about 0.1bar lower than the standard to prevent tire blowouts due to high temperatures.