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What is the appropriate tire pressure for SUV vehicles?

1 Answers

StEverett

07/30/25 6:27am

SUV vehicle tire pressure should be maintained at 2.5 bar. In summer, the tire pressure should be between 2.3 and 2.4 bar, as higher pressure combined with high road temperatures may increase the risk of a tire blowout. In winter, a tire pressure of 2.5 bar is suitable. Strictly speaking, tire pressure refers to the air pressure inside the tire. There is a label on the rear of the driver's side door indicating the standard tire pressure, which refers to the pressure when the tire is cold—meaning the vehicle has been parked for at least three hours or driven no more than 1.6 km. Measuring tire pressure when the tire is cold provides the most accurate reading. Below is relevant information about vehicle tire pressure: Hazards of excessive tire pressure: 1. Reduced friction and adhesion of the tire, affecting braking performance. 2. Causes steering wheel vibration and deviation, reducing driving comfort. 3. Accelerates wear on the central tread pattern of the tire, shortening its lifespan. 4. Increases vehicle vibration, indirectly affecting the lifespan of other components. 5. Overstretches the tire cords, reducing the elasticity of the tire body and increasing the load on the vehicle during driving. 6. Decreases resistance to punctures, making it easier for sharp objects like nails or glass to penetrate the tire, leading to internal cracks or blowouts. Hazards of insufficient tire pressure: 1. Increases friction with the road surface, leading to higher fuel consumption. 2. Makes the steering wheel heavy and prone to deviation, compromising driving safety. 3. Increases movement in various parts of the tire, causing abnormal heat due to excessive rolling. 4. Reduces the functionality of the cords and rubber, leading to delamination or cord breakage, and excessive friction with the rim, damaging the tire bead area and causing abnormal wear. 5. Multiplies friction between the tire and the ground, rapidly increasing tire temperature, softening the tire, and drastically reducing its strength. High-speed driving under such conditions may result in a blowout. 6. Low tire pressure increases tire body deformation, making the sidewalls prone to cracking and causing flexing movements, leading to excessive heat, rubber aging, cord fatigue, and breakage, while also increasing the tire's contact area and accelerating shoulder wear.

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