How to Check if Car Tire Pressure is Normal?
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The four tires of a car all have tread patterns. Generally, when the tire pressure is normal, 5-6 outer tread blocks will be in contact with the ground. If the tire pressure is too low, more tread blocks will contact the ground. If the tire pressure is too high, fewer tread blocks will contact the ground. Both excessively high and low tire pressures pose safety hazards. Below are relevant details: 1. Definition of Tire Pressure: Strictly speaking, tire pressure refers to the air pressure inside the tire. In car maintenance, the engine is the heart of the car—its damage can lead to the end of the car's life. Similarly, tire pressure is like the car's blood pressure, as its level significantly impacts the car's performance and power. 2. Standard Tire Pressure: Generally, 2.3-2.5 bar is the normal range for tire pressure. However, the standard tire pressure may vary depending on the car model. Additionally, tire pressure can be influenced by factors such as seasonal temperature, driving conditions, and vehicle load. Therefore, the normal range for tire pressure is not fixed. The standard tire pressure can usually be found in the car's user manual, on the label near the driver's door (B-pillar), in the drawer next to the driver's seat, or on the fuel tank cap. 3. Hazards of Overinflated and Underinflated Tires: (1) Overinflated Tires: Reduces the contact area between the tire and the ground, increasing pressure and wear per unit area. This can lead to loss of braking control, reduced grip during turns, and potential tire bursts when encountering road bumps or potholes, damaging the car's suspension system. (2) Underinflated Tires: Increases the contact area between the tire and the ground, causing abnormal temperature rises inside the tire during driving. Additionally, severe deformation of the tire sidewalls accelerates the aging of internal steel belts and fabric layers, increasing the risk of blowouts. It also leads to higher fuel consumption and reduced tire lifespan.