Why Is the Tire Pressure High in New Cars?
2 Answers
Reasons for high tire pressure in new cars: Tire damage causing deviation in the pressure of all four tires; High or low tire pressure leading to deviation in the pressure of all four tires; High tire temperature. Hazards of excessive tire pressure: Reduced friction and adhesion of the tires, affecting braking performance; Causes steering wheel vibration and deviation, reducing driving comfort; Accelerates localized wear of the tread center 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. Sharp objects like nails or glass on the road can easily penetrate the tire, causing internal cracks or blowouts. 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, compromising driving safety; Increases movement of tire components, causing abnormal heat due to excessive rolling; Reduces the functionality of cords and rubber, leading to delamination or cord breakage and excessive friction with the rim, damaging the bead area and causing abnormal wear; Multiplies friction with the ground, sharply raising tire temperature, softening the tire, and drastically reducing strength. High-speed driving may result in blowouts; Increases tire deformation, leading to sidewall cracks and excessive heat from flexing, accelerating rubber aging, cord fatigue, and breakage, while also increasing the tire's contact area and accelerating shoulder wear.
I noticed that the tire pressure of new cars is usually higher when they leave the factory. This is mainly because vehicles need to be parked for long periods or stacked during transportation. Higher tire pressure helps prevent deformation from prolonged pressure, avoiding flat spots or damage. After taking delivery of the car, we should immediately check the tire pressure gauge or visit a repair shop to adjust it to the manufacturer's recommended value, which is usually indicated on the door frame label or in the manual. When I drove my new car, I experienced a very stiff ride, but after reducing the pressure to the standard value, the driving comfort improved significantly, and the tire lifespan was extended. Regularly checking tire pressure is a good habit—it ensures driving safety, reduces wear, and improves fuel efficiency. Don’t forget to check the spare tire as well; it also requires maintenance. Don’t underestimate this small detail of tire pressure—it affects overall vehicle performance. After adjustment, you’ll notice reduced noise and more responsive handling.
