What is the standard tire pressure?
2 Answers
Standard tire pressure ranges between 2.3 and 2.5 bar. Tire pressure refers to the air pressure inside the tire, and the level of tire pressure plays a crucial role in a vehicle's performance and power. Tires are rolling objects installed on various vehicles or machinery that come into contact with the ground. Tires are often used under complex and demanding conditions, enduring various deformations, loads, forces, and high and low temperatures during operation. Therefore, they must have high load-bearing capacity, traction performance, and cushioning performance. Tires can be categorized by their intended use into: passenger car tires, light truck tires, construction machinery tires, off-road vehicle tires, agricultural and forestry machinery tires, industrial vehicle tires, motorcycle tires, aviation tires, and special vehicle tires.
I've been driving for many years, and tire pressure depends on the specific car—there's no universal standard. It's usually marked on a sticker on the edge of the door frame or the fuel cap, typically between 32 to 35 psi. Low pressure can cause tire deformation, increased fuel consumption, a heavy driving feel, and faster wear on the tire shoulders, shortening their lifespan. High pressure makes the ride stiff, reduces grip, and may even lead to a blowout. Last month before a long trip, I found the pressure was only 28 psi, so I quickly inflated it to 35, saving a lot on fuel and feeling much more agile steering. Tire pressure is greatly affected by temperature—for example, heat expansion in summer means checking it in the morning when cold is most accurate. I recommend checking it yourself with a pressure gauge every two months—don’t slack off, it’s safer and saves money. Different vehicles like SUVs and sedans have different pressure requirements, so check the manual carefully and don’t adjust randomly.
