
A tire pressure of 2.6 is normal. Tire pressure refers to the air pressure inside the tire. The effects of low tire pressure are: 1. Increased friction coefficient with the road surface; 2. Causes the steering wheel to feel heavy and prone to deviation; 3. Increased movement of various parts of the tire, leading to abnormal heating due to excessive rolling. The effects of high tire pressure are: 1. Reduced friction and adhesion of the tire, affecting braking performance; 2. Steering wheel vibration and deviation, reducing driving comfort; 3. Accelerated wear of the tread pattern in the center of the tire, reducing tire lifespan; 4. Increased body vibration, indirectly affecting the lifespan of other components; 5. Excessive stretching deformation of the tire cords, reducing tire elasticity and increasing the load on the car while driving.

I pay close attention to tire pressure when driving normally. 2.6 bar is slightly on the higher side but depends on the specific situation. Generally, passenger cars recommend 2.2 to 2.5 bar. If the label on the door frame indicates a recommended value of 2.5, then 2.6 is still barely acceptable. However, if it's already at this level when the tires are cold, especially in summer when it can easily rise above 2.8, you need to be cautious. Last week, I helped my neighbor release some air—his tire pressure was at 3.0 bar when driving on the highway, resulting in severe wear in the center of the tires. If the tire pressure is too high, the shock absorption worsens, making the ride bumpier, especially in the back seats, and emergency braking grip is also affected. However, if your car is an electric vehicle or SUV, some models recommend around 2.6 bar from the factory. The most reliable approach is to measure it once when the tires are cold. If it exceeds the recommended value by less than 0.3 bar, release some air; if it exceeds by more than 0.5 bar, go directly to a repair shop for adjustment. Don’t forget that tire pressure increases by about 0.1 bar for every 10°C rise in tire temperature.

As a veteran driver who takes long trips every week, I'm all too aware of the dangers of overinflated tires. Currently at 2.6, it's definitely outside the safe range - normal passenger cars usually maintain 2.2 to 2.5. I remember once taking a mountain road with tires at 2.7, and the car noticeably floated through corners. A technician later explained this reduces tire contact area. You should immediately check three things: look for the tire pressure label on the B-pillar or fuel filler cap; verify if the current reading was taken when the tires were cold; feel the tire hardness - if it barely deforms when pressed, it's overinflated. Long-term overinflation not only wastes fuel but causes premature center tread wear, cutting tire lifespan in half. For safety, release air to reach standard pressure, and check the valve stem for leaks. Especially before highway driving with full load, incorrect tire pressure can easily lead to overheating and blowouts.

A tire pressure of 2.6 is slightly high but still within reasonable limits, depending on your vehicle model. For my daily commuter car, the standard tire pressure is 2.3, so I immediately release air when it reaches 2.6. However, my friend's American pickup truck has a recommended tire pressure of 2.8, and maintaining 2.6 year-round actually suits it well. The criteria for judgment are simple: first, check the standard value in the manual or on the door frame label, then confirm the measurement timing. Tire pressure is most accurate in the morning before driving; readings after highway driving are unreliable. Excessively hard tires make for an uncomfortable ride, and the minor fuel savings aren't worth the cost of tire replacement. I always carry a portable air pump in my car, inflating to the upper limit of 2.5 in winter and reducing to 2.3 in summer for stable performance year-round. If the pressure exceeds the standard by more than 0.5, it's best to visit a repair shop for air release.


