Is a Tire Pressure of 290 Normal in Summer?
2 Answers
Summer tire pressure of 290 is not normal. According to the international GBT2978-2008 standard requirements, the standard tire pressure should be between 2.4-2.5 bar. 290 is higher than the maximum value of standard tire pressure, so it is not normal. Hazards of excessive tire pressure: Reduced tire friction and adhesion, affecting braking performance; Causes steering wheel vibration and deviation, reducing driving comfort; Accelerates wear on the central tread pattern of the tire, shortening its lifespan; Increases vehicle vibration, indirectly affecting the lifespan of other components; Overstretches and deforms the tire cords, reducing tire elasticity and increasing the load on the vehicle during driving; Decreases puncture resistance. When encountering sharp objects like nails or glass on the road, they can easily penetrate the tire, causing internal cracks or blowouts, leading to tire bursts.
To be honest, as someone who frequently drives long distances, I think a tire pressure of 290 kPa in summer is a bit too high. Normally, the safest cold tire pressure should be between 230 and 250 kPa. Rising temperatures naturally cause tire pressure to increase. While 290 might be barely acceptable when the tires are hot, it's definitely excessive for cold tires. Excessive tire pressure causes the center of the tire to wear out much faster, increases bumpiness while driving, reduces grip, and can lead to loss of control or even blowouts during high-speed turns—it's seriously dangerous, not a minor issue. I strongly recommend checking your cold tire pressure in the cool morning hours using an inexpensive tire pressure gauge and adjusting it to the recommended value on the door label, around 230 kPa. If you notice it exceeding this after driving for a while, regularly visit a service station to release some air. Make it a habit to check once a month, and pay extra attention to temperature effects in summer—don’t skip it for convenience.
