Is a Car Tire Pressure of 280 Normal?
2 Answers
Car tire pressure of 280 is normal. Tire pressure refers to the air pressure inside the tire, which is like the blood pressure of a car. The level of tire pressure plays a significant role in the performance and power of the vehicle. Tire pressure is an indicator of the car's load capacity, and the size of the load depends on the level of tire pressure. Hazards of abnormal tire pressure: 1. Reduced friction and adhesion of the tire, affecting braking performance; 2. Causes steering wheel vibration and deviation, reducing driving comfort; 3. Accelerates localized wear of the tread pattern in the center of the tire, shortening tire lifespan; 4. Increases body vibration, indirectly affecting the lifespan of other components; 5. Causes excessive stretching and deformation of the tire cords, reducing the elasticity of the tire body, and increasing the load on the car while driving; 6. Increases the friction coefficient with the road surface, leading to higher fuel consumption; 7. Increases the movement of various parts of the tire, causing abnormal heating due to excessive rolling.
Last time I inflated my tires to 280 kPa, and after driving, I felt they were too hard with a strong bumpy sensation, which made me realize the problem. The normal tire pressure should be between 190-250 kPa, depending on your car model, usually indicated on the door side or in the manual. My car's manual recommends 220 kPa, so 280 was clearly too high, which would cause faster wear in the center of the tires and shorten their lifespan. More importantly, excessive tire pressure increases the risk of a blowout, especially at high speeds, which is very unsafe. Later, I bought a digital tire pressure gauge to remeasure and adjust, and it indeed returned to the normal value. Now, I check regularly and recommend you use a tire pressure gauge to measure when the car is cold. If it's too high, you should release some air or have a repair shop adjust it. Safety first—don't underestimate this value. It can save fuel, but it must be set reasonably.
