What is the normal tire pressure for front and rear tires of a car?
1 Answers
First, the air pressure of the front and rear tires should be consistent. For sedans, the normal tire pressure for both front and rear tires is between 2.3 and 2.5. If the car is fully loaded with 5 passengers, adjusting the tire pressure to around 2.5 is more suitable; for general use with two passengers, a tire pressure of 2.3 is also normal. However, the tire pressure of a car can vary depending on different environments and seasons. Below are the functions of tire pressure monitoring: 1. Preventing accidents: The tire pressure monitoring system is a type of active safety device that can alert the driver in time when there are dangerous signs in the tires, prompting them to take appropriate measures, thereby avoiding serious accidents. 2. Extending tire lifespan: With a tire pressure monitoring system, tires can always be kept working within the specified pressure and temperature range, reducing tire damage and extending their lifespan. Data shows that driving with insufficient tire pressure, when the tire pressure is 10% below the normal value, can reduce tire lifespan by 15%. 3. More economical driving: When the tire pressure is too low, the contact area between the tire and the ground increases, thereby increasing friction resistance. When the tire pressure is 30% below the standard value, fuel consumption can increase by 10%. 4. Reducing wear on the suspension system: Excessive tire pressure can reduce the tire's own shock absorption effect, increasing the burden on the vehicle's shock absorption system. Long-term use can cause significant damage to the engine chassis and suspension system. If the tire pressure is uneven, it can also easily cause braking deviation, increasing wear on the suspension system.
