How to Read a Tire Pressure Gauge?
3 Answers
The method to read a tire pressure gauge is as follows: 1. The tire pressure gauge has two scales, one is in imperial units (pounds per square inch), and the other is in metric units (kilograms per square centimeter); 2. Observe where the pointer points to determine the pressure. The hazards of overinflated tires include: 1. Reduced friction and adhesion of the tire, affecting braking performance and tire lifespan; 2. Decreased resistance to punctures, increasing the risk of a blowout; 3. Accelerated wear on the central tread pattern, reducing tire lifespan, increasing vehicle vibration, and affecting the lifespan of other components; 4. Excessive stretching and deformation of the tire cords, reducing elasticity and increasing the load on the tire while driving, thereby decreasing puncture resistance; 5. Increased susceptibility to punctures from sharp objects like nails or glass, leading to internal cracks or blowouts upon impact.
I always make it a habit to check tire pressure when the car is cold, as readings are most accurate when tires are cooled down. Grab a tire pressure gauge—I usually find digital ones simpler to use: remove the valve stem cap, press the gauge firmly onto the valve to ensure a tight seal, and within seconds the screen displays the reading. The units are typically PSI or kPa; after noting the value, I compare it with my owner’s manual—recommended pressures vary by vehicle model, with SUVs often around 32 PSI. Remember to check every tire—don’t skip one out of laziness! I do this monthly to save money and stay safe; underinflated tires wear out faster and may even blow out, risking safety. Since adopting this routine, highway driving feels much more reassuring.
Checking tire pressure isn't as complicated as you might think. Start by choosing a good tool: a simple digital gauge will do. Just screw it manually onto the tire valve stem, and the reading will appear once the airflow sound stops. Remember, always measure when the car is parked and the tires are cool, otherwise the reading won't be accurate and you'll be wasting your time. Pay attention to the unit of measurement: passenger cars typically require 28-35 PSI, but check your owner's manual for specifics. From my experience, during spring and autumn when temperatures are stable, check once and note it down. In winter, cold tire pressure tends to drop a bit, while in summer it's higher—don't skip checking just because it's a hassle. Operate steadily to avoid letting dust into the air passage and affecting accuracy. Keep the gauge in your car and use it before trips; safe driving relies on these small details.
