Tire Pressure Value
2 Answers
Tire pressure normally ranges between 2.3 to 2.5 bar. Tire pressure refers to the air pressure inside the tire, and its level plays a crucial role in the performance and power of the vehicle. The effects of overinflation are: 1. Increased friction between the tire and the ground, reducing tire adhesion; 2. Impaired braking effectiveness and driving comfort, accelerating wear on the central tread and shortening tire lifespan; 3. Increased body vibration, accelerated tire aging, reduced wear resistance, and higher risk of blowouts. The effects of underinflation are: 1. Increased contact area between the tire and the ground, making the steering wheel heavier and affecting driving; 2. Tires are prone to overheating, increasing the risk of blowouts; 3. Expansion of the tire body, leading to cracks on the inner and outer sides; 4. Accelerated rubber aging and faster tire wear.
I've always driven SUVs, and I'm particularly concerned about tire pressure. My car recommends 34 PSI for the front tires and 32 PSI for the rear tires. However, two summers ago, I adjusted the tire pressure to 36 PSI, and it felt slippery when cornering. After checking, I realized that higher pressure affects grip. In winter, I reduced it to 30 PSI, but then I noticed increased fuel consumption, with mileage dropping by 15%. Now I've learned my lesson: at the beginning of each month, I measure the tire pressure when the car is cold and keep it at the recommended values. In summer, when the sun is intense, the tire pressure naturally rises by 1-2 PSI, so I let some air out; in winter, when it's cold, I top it up. This ensures even tire wear and extends their lifespan. I remember one road trip where a friend's car had uneven tire pressure, and the rear tires wore out prematurely and blew out—luckily, we checked beforehand. Developing this habit is actually simple: just use the free tire pressure gauge at the gas station every time you fill up, and you'll stay safe and worry-free.
