Toyota RAV4's normal tire pressure range is 2.2-2.5 bar. The car's tire pressure can generally be referred to the label on the back of the fuel tank cap or the car's manual. The hazards of excessive tire pressure are as follows: The tire's friction and adhesion will decrease, affecting braking performance; it may cause steering wheel vibration and deviation, reducing driving comfort; it accelerates the wear of the central tread pattern of the tire, shortening the tire's lifespan; the vehicle's vibration increases, indirectly affecting the lifespan of other components; it causes excessive stretching deformation of the tire cords, reducing the tire's elasticity and increasing the load on the car while driving; puncture resistance decreases. When encountering sharp objects such as nails or glass on the road, they can easily penetrate the tire, and impacts may cause internal cracks and blowouts, leading to tire bursts. The hazards of insufficient tire pressure are as follows: The friction coefficient with the road surface increases, leading to higher fuel consumption; it makes the steering wheel heavy and prone to deviation, which are factors detrimental to driving safety; it increases the movement of various parts of the tire, causing abnormal heating due to excessive rolling; it reduces the function of the cords and rubber, leading to delamination or cord breakage, and excessive friction with the rim causes damage to the bead area and abnormal wear; the friction between the tire and the ground multiplies, causing the tire temperature to rise sharply, the tire to soften, and its strength to drop drastically. High-speed driving may lead to tire bursts; it increases the deformation of the tire body, making the sidewalls prone to cracks, while generating flexing motion, leading to excessive heat, promoting rubber aging, fatigue of the cord layers, and cord breakage. It also increases the tire's contact area with the ground, accelerating shoulder wear.
