Should the car tire pressure be set to 225?
2 Answers
Yes. There are three commonly used methods for tire pressure monitoring: Direct Tire Pressure Monitoring: Direct tire pressure monitoring devices use pressure sensors installed in each tire to directly measure the tire pressure. The pressure information is transmitted from inside the tire to a central receiver module via a wireless transmitter, and the tire pressure data for each tire is displayed. When the tire pressure is too low or there is a leak, the system will automatically issue an alarm. Indirect Tire Pressure Monitoring: When the pressure in a tire decreases, the weight of the vehicle will cause the rolling radius of that wheel to become smaller, resulting in a faster rotation speed compared to the other wheels. By comparing the differences in rotation speeds between the tires, the system monitors the tire pressure. Indirect tire pressure alarm systems essentially rely on calculating the rolling radius of the tires to monitor pressure. Introduction to Tire Pressure Monitoring System (TPMS): This system combines the advantages of the two aforementioned systems. It is equipped with direct sensors in two diagonally opposite tires and includes a 4-wheel indirect system. Compared to using only a direct system, this hybrid system can reduce costs and overcome the limitation of indirect systems, which cannot detect when multiple tires simultaneously have low pressure. However, it still cannot provide real-time data on the actual pressure in all four tires like a direct system does.
I remember driving my old car for many years, and tire pressure is something you can't be careless about. 225 is in kPa units, right? The standard tire pressure varies for each vehicle, usually with a label on the door frame indicating the recommended value. For small cars, it's typically between 200 and 250 kPa. My car's recommended pressure is 210 kPa, so 225 might not be suitable for my car—it must be inflated to the correct value. Overinflated tires can lead to poor grip and longer braking distances, while underinflation increases fuel consumption and the risk of blowouts. I keep a tire pressure gauge handy and check it when the tires are cold to ensure accuracy. Also, consider changes in load—if fully loaded, you might need to increase the pressure slightly. In short, don't guess; check the manual or get a professional inspection at a 4S shop. Safety comes first.
