What is the appropriate tire pressure for Michelin Primacy 4?
1 Answers
The normal tire pressure range for Michelin Primacy 4 is generally between 2.3~2.8bar. In winter, the tire pressure should be based on the standard tire pressure of the car, with an appropriate increase of about 0.2bar. In summer, the lower limit of the standard tire pressure is usually sufficient, for example, the lower limit of the standard tire pressure is 2.4bar. If the car is often parked outdoors, the tire pressure can generally be about 0.1bar lower than the standard to avoid tire blowout due to high temperature. Hazards of excessive tire pressure: The friction and adhesion of the tire will decrease, affecting braking performance; It can cause steering wheel vibration and deviation, reducing driving comfort; Accelerates the local wear of the tread pattern in the center of the tire, reducing tire life; The vibration of the car body increases, indirectly affecting the life of other components; It can cause 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 and glass on the road, they can easily penetrate the tire, and the impact can cause internal cracks and explosions, leading to tire blowout. Hazards of insufficient tire pressure: The friction coefficient with the road surface increases, leading to higher fuel consumption; It can cause the steering wheel to become 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; Reduces the function of the cords and rubber, leading to delamination or cord breakage, and excessive friction with the rim, causing damage and abnormal wear at the bead area; The friction between the tire and the ground increases exponentially, the tire temperature rises sharply, the tire becomes soft, and its strength drops sharply. High-speed driving may cause tire blowout; It increases the deformation of the tire body, making the tire side prone to cracks, and generates flexing motion, leading to excessive heat, promoting rubber aging, fatigue of the cord layer, cord breakage, and also increases the tire's contact area with the ground, accelerating shoulder wear.
