What is the standard tire pressure for private cars?
1 Answers
Generally, the tire pressure for household private cars ranges from 0.2MPa to 0.25MPa, which is equivalent to 2~2.5kg/cm2. You can find the manufacturer's recommended tire pressure reference values in the vehicle's user manual, near the B-pillar, or on the fuel tank cap. For most household sedans, the tire pressure is typically between 0.2MPa and 0.25MPa, which translates to 2~2.5kg/cm2—commonly referred to by mechanics as 2 to 2.5 kilograms. Generally, a tire pressure value between 20 and 25 is considered normal. If the car is fully loaded (5 passengers), adjusting the tire pressure to around 25 is more suitable. For two passengers, a tire pressure of 2.3 is also normal. Hazards of overinflation or underinflation: For tires, pressure should neither be too high nor too low. Overinflation reduces the contact area between the tire and the ground, leading to poor grip, which affects the vehicle's handling and driving stability. Underinflation can cause wave-like deformation of the tire during high-speed driving, shortening the tire's lifespan and increasing the risk of a blowout. Standard tire pressure introduction: According to the international GBT2978-2008 standard, the recommended tire pressures for different types of tires are as follows: Standard tires: 2.4-2.5bar; Reinforced tires: 2.8-2.9bar; Maximum pressure: should not exceed 3.5bar.
