What is the appropriate tire pressure for driving on highways?
1 Answers
Generally, the tire pressure of a car should be maintained at around 220-260Kpa. Before driving on highways, it is advisable to inflate the tires to around 250 or 260Kpa. Excessive tire pressure: The friction and adhesion of the tires will decrease, affecting braking performance, causing steering wheel vibration and deviation, reducing ride comfort, accelerating wear on the central tread pattern, and increasing the risk of tire bulging and stone trapping. It also causes excessive stretching of the tire cords, reducing tire elasticity, increasing the impact during driving, and amplifying road noise. When encountering sharp objects like nails or glass on the road, they can easily penetrate the tire, leading to internal cracks and blowouts. Insufficient tire pressure: The friction coefficient with the road surface increases, leading to higher fuel consumption. The friction between the tire and the ground multiplies, causing a rapid rise in tire temperature, softening the tire, and drastically reducing its strength. High-speed driving under low tire pressure can result in blowouts. Low tire pressure increases tire deformation, leading to sidewall cracks and excessive flexing, which generates heat, accelerates rubber aging, fatigues the cord layers, and may cause cord breakage. It also increases the tire's contact area with the ground, accelerating wear on the tire shoulders.
