What is the normal tire pressure generally?
3 Answers
According to the provisions and requirements of the international GBT2978-2008 standard, the normal tire pressure range is as follows: Standard tires: 2.4-2.5bar; Reinforced tires: 2.8-2.9bar; Maximum pressure: should not exceed 3.5bar. Hazards of excessive tire pressure: The friction and adhesion of the tire will decrease, affecting braking performance; It can cause steering wheel vibration and deviation, reducing driving comfort; Accelerates the local wear of the tread pattern in the central part of the tire, reducing tire lifespan; Increases vehicle body vibration, indirectly affecting the lifespan of other components; Excessive tension deformation of tire cords can occur, reducing the elasticity of the tire body and increasing the load on the vehicle during driving; Decreases puncture resistance. When encountering sharp objects such as nails or glass on the road, they can easily penetrate the tire, and impacts can cause internal cracks and explosions, leading to tire blowouts.
In my early years of driving, I never paid attention to tire pressure, thinking as long as the tires felt hard, it was fine. Once, while driving on the highway for a trip, my right rear tire suddenly went flat—it turned out the pressure was too low, causing overheating and a blowout. Luckily, the adjacent lane was empty, so I could pull over safely. Since then, I've become obsessive, checking my tire pressure every two weeks. The normal range is generally 25 to 35 PSI; for example, my car's manual recommends 30 PSI. Remember to measure when the tires are cold, ideally in the morning after parking, for accurate readings. Too high (above 35 PSI) makes the ride uncomfortably bumpy, while too low (below 25 PSI) increases fuel consumption and accelerates wear. Seasonal changes also matter—pressure drops slightly in cold winters and rises in hot summers, so I adjust slightly to ensure safety. I usually check when refueling, using a $10 pressure gauge—it’s cost-effective, hassle-free, and prevents accidents.
As a new car owner, I only realized how important tire pressure is after buying my car. For the first few months, I didn't check it, and my fuel consumption suddenly increased by 30%. A friend pointed out that it was due to low tire pressure causing excessive friction. Normal tire pressure varies by vehicle model, typically between 28 to 32 PSI, with SUVs being slightly higher. Now I measure it monthly using a tire pressure gauge, ensuring readings are accurate when the tires are cold. I learned to check the label on the driver's side door frame for specific values. Too high pressure affects comfort, while too low is dangerous and increases the risk of skidding. After making it a habit, my driving became smoother, and fuel consumption returned to normal. This simple maintenance task has boosted my safety confidence.
