Is a tire pressure of 2.3 or 2.5 better?
2 Answers
Tire pressures of both 2.3 and 2.5 are suitable, as the normal range for tire pressure is between 2.2 and 2.5. Tire pressure refers to the air pressure inside the tire. In car maintenance, the engine is considered the heart of the car, and its damage can lead to the end of the car's life; tire pressure is the blood pressure of the car, and its level plays a crucial role in the car's performance and power. During summer or winter, due to the principle of thermal expansion and contraction, tire pressure increases in high temperatures and decreases in low temperatures. Therefore, summer tire pressure should be lower than winter tire pressure. Generally, it is recommended that summer tire pressure be at the lower limit of the standard tire pressure, while winter tire pressure should be appropriately increased by about 0.2 bar on the basis of the standard pressure.
I think whether a tire pressure of 2.3 or 2.5 is better depends on the specific situation of your car. When I drive, I always check the label on the door frame, which shows the manufacturer's recommended value—for example, my car recommends 2.4. A tire pressure that's too low, like 2.3, increases the risk of a blowout because the tire deforms and heats up quickly. On the other hand, a higher pressure like 2.5 can save some fuel but may make the ride bumpier, especially when going over speed bumps—it can be quite uncomfortable. I suggest using a tire pressure gauge to check once a month, measuring when the tires are cold for more accuracy—don’t rely on guesswork. For long trips or when carrying heavy loads, higher tire pressure is better for safety. In short, follow the manual and don’t make random changes—it could save your life.
