Is a Tire Pressure of 2.8 Normal?
2 Answers
Car tire pressure of 2.8 is not normal, as reaching 2.8 bar may cause a tire blowout. According to the international GBT2978-2008 standard, the standard tire pressure for car tires should be maintained between 2.3-2.5 bar. Based on the standard tire pressure principle, it is also acceptable to appropriately reduce the pressure by 0.2 bar during summer. Additional details are as follows: 1. Low Tire Pressure: If the tire pressure is too low, it will increase the contact area between the tire and the road surface while driving. During high-speed driving, encountering road protrusions may lead to a blowout. 2. High Tire Pressure: If the tire pressure is too high, it will reduce driving comfort, decrease the contact area between the tire and the road surface, and also impair the vehicle's handling performance.
I've been driving for twenty years and found that a tire pressure of 2.8 is too high, generally the normal range is between 2.0 and 2.5. Higher pressure makes the ride noticeably bumpy, even shaking the steering wheel, especially on rough roads where the car bounces up and down, affecting handling. The center of the tire wears out faster, requiring new tires sooner and reducing average lifespan by about twenty percent. It gets worse in summer when rising temperatures can push the pressure above 3.0, drastically increasing the risk of a blowout. Remember to check tire pressure when the tires are cold—measuring in the morning before driving gives the most accurate reading. There's usually a manufacturer's sticker on the door frame or fuel cap with the recommended value; adjust accordingly. I recommend lowering it to below 2.4 for safety and reliability. Make it a habit to check tire pressure once a week—it saves both hassle and money.
