How to Use a Car Tire Pressure Gauge?
2 Answers
Methods for using a car tire pressure gauge: 1. The angle between the center line of the pressure gauge's measuring port and the axis of the gauge body should be between 90 and 180 degrees. The scale is a square, with a range from 0.07wpa to 0.4wpa. Before reading, gently tap the instrument's casing or glass surface with your finger to eliminate friction in the transmission mechanism; 2. When observing, ensure the pointer overlaps with the mirror pointer. The value indicated by the pointer at this time is the pressure reading, accurate to one decimal place; 3. Align and press the measuring end slot of the pressure gauge firmly against the tire valve. The pointer on the tire pressure gauge will then deflect, and the indicated value is the tire's inflation pressure. Alternatively, the gauge's indicator rod may be pushed out by the air pressure, displaying the tire's inflation pressure. The greater the internal tire pressure, the more the pointer deflects.
I used to think inflating my tires was a hassle, but using a tire pressure gauge is actually quite simple. First, find a quiet parking spot, unscrew the little cap on the tire valve stem and keep it safe so it doesn't get lost. Then take out the pressure gauge, press the nozzle firmly onto the valve, applying a bit of force to ensure a tight seal—you'll hear a slight hissing sound which is normal, and the digital display or needle will show the pressure reading. Avoid checking right after driving when the tires are hot (like after traveling several kilometers), as the heat causes higher, inaccurate readings. It's best to measure when the car is cold in the morning or after being parked for at least three hours. Compare the reading to the recommended tire pressure listed on the door jamb—if it's low, use an air pump to reach the target pressure; if it's high, press the gauge's air release valve to let out some air. Finally, don’t forget to screw the cap back on, otherwise dust can get in and cause slow leaks. I make it a habit to check monthly because it improves driving safety, saves fuel, and ensures even tire wear. Opt for a digital pressure gauge for clearer readings, and don’t skimp on quality. Building this routine also helps spot potential issues early, like signs of slow leaks.
