Why is the tire pressure inconsistent in car tires?
2 Answers
Inconsistent tire pressure in car tires is related to the vehicle type, suspension tuning, and front-rear weight distribution. Here is some information about tire pressure values: Types: Tire pressure gauges are generally divided into three types: analog (dial) tire pressure gauges, digital tire pressure gauges, and alarm-type tire pressure gauges. Standards: There have been internationally established standards for appropriate car tire pressure. According to the international GBT2978-2008 standard, standard tires should have a pressure of 240-250 kPa; reinforced tires should have a pressure of 280-290 kPa; the maximum pressure for all types of tires should not exceed 350 kPa.
Inconsistent tire pressure is quite annoying, and I've encountered it several times over decades of driving. The main causes include natural air leakage, aging tire rubber or small holes, and slow leaks from loose valve cores. Temperature changes have a significant impact; in winter, the cold causes rapid pressure drops, while in summer, the pressure rises. After driving for a while, if you notice the steering wheel pulling to one side or a humming noise from the car, these are signs of uneven tire pressure, which can also increase fuel consumption and cause uneven wear. Regular checks are crucial. I use a tire pressure gauge to measure all four tires every month, keeping them around 2.3 to 2.5 bar. Developing this habit can prevent major issues. When I was younger, I didn't pay attention, and one tire wore out completely, nearly causing an accident.
