Meaning psi pressure12/14/2023 ![]() ![]() The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) is a unit of pressure or of stress based on avoirdupois units. meter of head to gram/square centimeter.meter of head to dyne/square centimeter.meter of head to meganewton/square meter.meter of head to kilopond/square centimeter.PSI to meter of head, or enter any two units below: Enter two units to convert From: That’s why Bridgestone DriveGuard tires are masterfully engineered to keep you moving for up to 50 miles at speeds up to 50 MPH without disruption.You can do the reverse unit conversion from Of all the pressure gauges out there, they’re the most likely to be weathered, and possibly inaccurate. It’s best to use your personal tire gauge versus those available attached to air hoses at service stations. If you think having to replace the battery will prevent you from using it, it’s best to go with a standard gauge. If you’re not sure which one to purchase, ask a professional technician which he or she prefers.Ī digital tire pressure gauge will provide accurate readings, but don’t forget that it operates on a battery. For just a few dollars, you can find a quality, accurate tire pressure gauge that gives accurate readings. TIRE PRESSURE GAUGE ACCURACYĪccuracy matters and you should keep that in mind when choosing a gauge. Regularly checking your tire pressure is the best way to ensure your tires never dip far below the optimal PSI. Make the above procedure a monthly ritual. Overinflation can result in decreased traction, premature wear, and decreased impact absorption. At this point, it’s ok if you overfilled the tires because you can always let some air back out. Recheck the inflation pressure when the tires are cold.Īfter filling your tires, use the gauge to check pressure again. Using a gas station air compressor means your tires might be “hot.” If it is necessary to adjust inflation pressure when tires are “hot”, set their pressure to 4 psi (14 kPa) above the recommended cold inflation pressure. Fill each tire by placing the end of the hose over the valve stem and pressing on the lever. Insert change into the machine until you hear the motor running. If you’re using the air compressor at a gas station, be sure to park so that the hose will reach all four tires. Many air compressors are different, so read directions carefully to be sure you’re using it correctly. ![]() Use an air compressor to refill any tires with low pressure. Write down the reading and repeat this process for all four tires. A digital gauge will show you the reading on a screen. Measurement units are etched into the bar. With a standard gauge, the air pressure will push a small bar out from the bottom of the gauge. Then place the pressure gauge on the valve stem and press down hard enough so the hiss sound disappears and your gauge provides a reading. Remove the valve cap from one of your tires. If your front and rear tires require different pressure levels, write down the correct PSI for each to avoid getting confused as you move around your vehicle checking tire pressure. If you cannot find it, you should consult your vehicle dealer, manufacturer, or a qualified tire professional. Look on the driver’s side door jamb or your owner’s manual to find the recommended cold tire PSI for your front and rear tires. PSI is the unit your pressure gauge uses to provide readings. Tires are considered cold when the vehicle has been parked for three hours or more, or if the vehicle has been driven less than a mile (1.6 km) at moderate speed. Vehicle manufacturers specify PSI – literally “pounds per square inch” of pressure – assuming tires are cold. ![]()
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