What is the normal tire pressure for cars?
1 Answers
Standard tire pressure is 2.4-2.5 bar, reinforced tire pressure is 2.8-2.9 bar, and the maximum tire pressure should not exceed 3.5 bar. If the tire pressure is too high or too low, it needs to be addressed promptly to avoid affecting the normal operation of the vehicle. Factors affecting tire pressure: The tire pressure standard also depends on the type of tire and the vehicle model. Different vehicle models have varying weights, heights, and tire sizes, requiring different tire pressures. Standard tire pressure is 240-250 kPa, while reinforced tire pressure is 280-290 kPa. Additionally, cold tires and hot tires have different pressures, with hot tires having about 20 kPa higher pressure than cold tires. Moreover, tire pressure is significantly influenced by seasonal factors. In summer, high temperatures can cause tires to heat up during driving, and high pressure can lead to blowouts, so the pressure should be slightly lower. In winter, tire pressure should be slightly higher than in summer due to thermal contraction and expansion. Generally, a tire pressure of 250-280 kPa is suitable for cars in winter. Precautions for checking tire pressure: Observe the tire condition before traveling. Radial tires—commonly known as low-pressure tires—should have sufficient flexibility when pressed with the foot, not feeling too soft. High-pressure tires—bias-ply tires with inner tubes—should not have bulging shoulders when viewed from the front, and the contact area with the ground should be normal when viewed from the side. While driving, pay attention to the sound of tire friction with the ground, the cushioning effect on smooth roads, and any changes in acceleration compared to normal conditions. These observations help build experience. Normally, check and adjust the tire pressure at a professional tire repair shop every week.