What is the ideal tire pressure?
2 Answers
For most passenger cars, the recommended tire pressure is generally between 2.2-2.5 bar. According to the international GBT2978-2008 standard, the tire pressure requirements for different types of tires are as follows: Standard tires: 2.4-2.5 bar; Reinforced tires: 2.8-2.9 bar; Maximum pressure: should not exceed 3.5 bar. When inflating tires, pay attention to the following points: Always use a pressure gauge to check the pressure to avoid overinflation, which can cause the tire to burst. After stopping, wait for the tires to cool down before inflating, as driving increases tire temperature, which affects pressure. Check the valve stem. If the valve stem and core are not properly aligned or have defects, it can make inflation and pressure measurement difficult. Ensure clean inflation. The air used should not contain moisture or oil, as this can damage the inner tube rubber. Do not exceed the standard pressure significantly and then deflate, nor overinflate after prolonged periods without inflation. Excessive pressure can overstretch the cords, reducing their strength and shortening tire life. Before inflating, clean the valve stem of dust and ensure the valve core is secure. After inflation, apply soapy water (or saliva) to the valve stem to check for leaks (bubbles indicate leaks). Always replace and tighten the valve cap to prevent dirt from entering. When inflating radial tires, their larger deflection and contact area may lead to misjudgment of underinflation and overinflation, or vice versa. Always use a standard pressure gauge for accurate measurement. Radial tires typically require 0.5-1.5 kg/cm2 higher pressure than conventional tires.
Having driven for over a decade, I believe tire pressure is crucial for safety. The standard tire pressure is generally between 2.2 to 2.5 bar, depending on the vehicle model. It's best to check your owner's manual or the label on the door pillar. Low tire pressure can cause sidewall deformation and overheating, leading to dangerous blowouts in severe cases. High tire pressure, while slightly improving fuel efficiency, reduces grip and increases braking distance, making the car particularly slippery in rainy conditions. I recommend checking the tire pressure monthly, especially before long trips, using a simple tire pressure gauge. It's best to check when the tires are cold, like before heading out in the morning. Abnormal tire pressure can affect overall handling and cause uneven wear, so adjusting it early saves both hassle and money.
