Is a tire pressure of 280 normal?
3 Answers
Tire pressure of 280 is not normal, it is too high. The solution for excessive tire pressure is to release some air from the tire. The reasons for high tire pressure are: 1. Overly hot weather causing gas expansion leading to high tire pressure; 2. Over-inflation of the tire causing high pressure; 3. Aging and wear of suspension components related to the wheels, resulting in inaccurate tire alignment, uneven wear, increased temperature, and higher tire pressure; 4. Prolonged operation generating heat through friction, leading to increased tire pressure. The impacts of excessive tire pressure are: 1. Steering wheel vibration and deviation, reducing driving comfort; 2. Accelerated wear of the central tread pattern, shortening tire lifespan; 3. Reduced tire friction and adhesion, affecting braking performance; 4. Excessive stretching deformation of tire cords, decreasing tire elasticity and increasing the load on the car during driving; 5. Increased body vibration, indirectly affecting the lifespan of other components; 6. Decreased resistance to punctures.
I've driven for several years and found that excessively high tire pressure really has a significant impact. If the value of 280 you mentioned is in kPa, then it's already on the high side. Generally, the recommended tire pressure for sedans is between 200 to 250 kPa. Last time when my tire pressure reached 280 on the highway, I clearly felt stronger bumps, and the middle of the tires wore out particularly fast. Over time, it could even lead to a tire blowout. I suggest you first check the label on your car's B-pillar, which shows the manufacturer's recommended tire pressure. Use a tire pressure gauge to measure it yourself. If it doesn't meet the standard, adjust it promptly. Now that it's hot in summer, tire pressure tends to rise. It's best to adjust it when the car is cold. Usually, just let out some air to avoid excessively high pressure affecting safety and comfort.
I usually pay attention to driving safety, so I'm quite particular about tire pressure. If the pressure is 280 kPa, it's a bit on the high side, with the ideal range typically being 200-250 kPa. Overinflated tires can lead to reduced grip and increased risk during emergency braking. Especially on wet roads in rainy conditions, higher pressure makes skidding more likely. I make it a habit to check tire pressure every season, and using an electronic tire pressure gauge is very convenient. I recommend adjusting it to the standard value as per the vehicle manual, as pressure that's too low can also affect fuel efficiency and handling. By the way, having the tires checked for wear during maintenance can save a lot of trouble.
