The measurement of air pressure within a vehicle’s tires is typically achieved using a handheld device designed for this specific purpose. This tool displays a numerical value, usually in pounds per square inch (PSI), reflecting the force exerted by the air inside the tire. For instance, a gauge reading might indicate 32 PSI, signifying the air pressure within the tire.
Maintaining correct inflation levels is crucial for optimal vehicle performance, fuel efficiency, and tire longevity. Historically, visual inspections were common, but these methods were inaccurate. Accurate measurement provides increased safety and reduced running costs associated with premature wear and tear, as well as improved gas mileage.