Why Do Cars Have Low Tire Pressure?

[DelHannah]

There are many reasons for low tire pressure, mainly including tire damage and slow air leakage caused by tire aging. Hazards of excessive tire pressure: The friction and adhesion of the tire will decrease, affecting braking performance; it causes steering wheel vibration and deviation, reducing driving comfort; accelerates uneven wear of the central tread pattern, shortening tire lifespan; increases vehicle vibration, indirectly affecting the lifespan of other components; overextends the tire cords, reducing tire elasticity and increasing the load on the vehicle during driving; decreases puncture resistance. When encountering sharp objects like nails or glass on the road, they can easily penetrate the tire, causing internal cracks or blowouts due to impact, leading to tire bursts. Hazards of insufficient tire pressure: Increases friction with the road surface, leading to higher fuel consumption; makes the steering wheel heavy and prone to deviation, creating unsafe driving conditions; increases movement in various parts of the tire, causing abnormal heat due to excessive rolling; reduces the functionality of the cords and rubber, leading to delamination or cord breakage, and excessive friction with the rim causing damage to the bead area and abnormal wear; multiplies friction with the ground, rapidly increasing tire temperature, softening the tire, and drastically reducing its strength. High-speed driving may result in tire bursts; increases tire body deformation, making the sidewalls prone to cracks and generating flexing movements, leading to excessive heat, rubber aging, cord fatigue, and breakage, while also increasing the tire's contact area with the ground, accelerating shoulder wear.