How to Check Car Tire Inflation Pressure Gauge?
2 Answers
The method to check a car tire inflation pressure gauge is: Align and press the measuring end slot of the pressure gauge firmly against the tire valve stem. At this point, the pointer on the tire pressure gauge will deflect, and the indicated value is the inflation pressure of the tire. Alternatively, the gauge's indicator rod may be pushed out by the air pressure, and the value displayed on the rod is the tire's inflation pressure. The greater the internal tire pressure, the more the pointer will deflect. The standard tire pressure is usually marked on the driver's side door or door edge. It's important to note that pressure can be expressed in different standard units, typically 3 to 4 types, such as kg per square centimeter, bar, PSI, and kPa.
The first time I used a tire pressure gauge, I was a bit confused, but now that I understand it, it's simple: First, park the car steadily, preferably in a cold state for more accurate measurement. Look for the label on the door frame or fuel tank cap to check the recommended tire pressure value, usually in PSI or bar. There are three types of pressure gauges: dial, digital, and plunger. For the dial type, press firmly onto the tire valve stem until no air leaks, wait for the needle to stabilize, and then read the scale. The plunger type works similarly—press firmly and observe where the popped plunger stops. Digital gauges are the most convenient; just press onto the valve stem, and the screen will display the number directly. When operating, unscrew the valve cap but don’t lose it, and screw it back on after measuring. Avoid measuring when the tires are hot or under direct sunlight, as it can affect the results. My usual car maintenance advice is to check the tire pressure monthly. Underinflated tires wear out faster and consume more fuel, while overinflation makes the ride bumpy and increases the risk of a blowout.
