Is a tire pressure of 3 bar acceptable in winter?
2 Answers
Winter tire pressure of 3 bar is abnormal. According to the provisions and requirements of the international GBT2978-2008 standard, the standard tire pressure is 2.4-2.5 bar. In winter, it is appropriate to increase the pressure by about 0.2 bar, but 3 bar exceeds the maximum standard tire pressure of 2.7 bar, so it is abnormal. Hazards of excessive tire pressure: Tire friction and adhesion will decrease, affecting braking performance; It will cause steering wheel vibration and deviation, reducing driving comfort; It accelerates the localized wear of the tread pattern in the center of the tire, reducing tire lifespan; Vehicle body vibration increases, indirectly affecting the lifespan of other components; It causes excessive stretching and deformation of the tire cords, reducing the elasticity of the tire body and increasing the load on the car during driving; Puncture resistance decreases. When encountering sharp objects such as nails or glass on the road, they can easily penetrate the tire, and the impact can cause internal cracks and explosions, leading to a blowout.
A tire pressure of 3 bar in winter is too high. I've seen many car owners do this, resulting in faster tire wear and reduced safety. The standard tire pressure is usually indicated on the door label or manual, ranging between 2.1 to 2.5 bar. Excessive pressure causes the tire center to bulge, leading to severe wear. In winter, slippery roads further impair handling, and the ride becomes bumpier while fuel consumption increases. It's advisable to check the tire pressure when the car is cold. If it reads 3 bar, release some air to adjust it to the recommended value. Safety first—don't take risks. Regular checks help prevent blowouts, and good habits extend tire lifespan.