Should the tire pressure of 3.0 bar in a new car be deflated?
3 Answers
New car tire pressure of 3.0 bar is obviously too high and needs to be deflated to a reasonable tire pressure range. Although a tire pressure of 3.0 bar is drivable, maintaining high tire pressure for a long time can affect the driving experience at best and may even lead to tire blowouts at worst. Whether it's a sedan or an SUV, the normal tire pressure range for household vehicles is generally 230-250 kPa (2.3-2.5 bar). To find the most suitable tire pressure, you can refer to the vehicle's user manual, the label next to the driver's door, or the inside of the fuel tank cap, where the manufacturer's recommended tire pressure is usually indicated. Generally speaking, a tire pressure above 2.8 bar is considered too high, while a tire pressure below 2.0 bar is considered too low. Hazards of excessive tire pressure: Reduced friction and adhesion of the tires, affecting braking performance; causing steering wheel vibration and deviation, reducing driving comfort; accelerating wear on the central tread pattern of the tire, shortening tire lifespan; increasing body vibration, indirectly affecting the lifespan of other components; overstretching and deforming the tire cords, reducing tire elasticity, and increasing the load on the vehicle while driving.
I've driven several brand-new cars before, and the factory tire pressure was always on the high side. 3.0 bar is indeed too much and requires deflation, otherwise the ride becomes extremely bumpy, the center of the tires wears out super fast, and over time it can even affect the suspension. I always check the tire pressure label on the door jamb myself, where the recommended value is usually around 2.2-2.5 bar. I simply use a portable tire pressure gauge to measure it, and if it's over, I let some air out. In summer, the tire pressure naturally increases with heat, and in winter, it drops and needs adjustment. Don't wait until a blowout to regret it—new drivers often overlook this detail. Regular maintenance can save a lot on tires and also improve driving comfort.
Veteran driver experience tells you that a tire pressure of 3.0 is too high. The standard range for most cars is 2.2 to 2.5 bar. Exceeding this will shorten tire lifespan, causing excessive wear in the central area and increasing fuel consumption while also extending braking distance, which poses significant risks. Factory settings are often on the higher side, so it's important to adjust them promptly, preferably following the user manual's instructions. Seasonal changes have a noticeable impact—tire pressure rises in hot weather and drops in cold weather. It's recommended to check quarterly to avoid travel disruptions during emergencies. Find a reliable repair shop to get it done quickly, saving money and ensuring safety.
