Vehicle manufacturers specify PSI per sq inch” of pressure from a cold tire. Tires are considered cold when the vehicle has been parked for 3 hours or longer, or if the vehicle has been driven less than one mile (1.6 km) at medium speed. PSI is the device your pressure gauge uses to provide readings. 
2. CHECK THE MANUFACTURER’S RECOMMENDED PSI Look on the driver’s side door jamb or your owner’s guide to discover the recommended cold tire PSI for your back and front tires. If you can’t find it, then you should consult your vehicle dealer, manufacturer, or us. 
3. WRITE DOWN THE PSI FOR EACH TIRE In case your back and front tires must different pressure levels, write down the correct PSI for every to prevent getting confused as you move around your automobile checking tire pressure
4. CHECK TIRE PRESSURE WITH YOUR GAUGE Remove the valve cap from one of your tires. Then put the pressure gauge on the valve stem and press down hard enough so the hissing sound disappears along with your estimate provides a reading. With a standard gauge, the air pressure will push a small pub out from the bottom of the gauge. Measurement units are etched into the pub. A digital gauge will show you the reading on a screen.  Write the reading and repeat this procedure for all four tires. 
5. FILL TO THE RECOMMENDED PSI Use an air compressor to refill any tires with low pressure. Many air compressors are very different, so read directions to be sure you’re using it.  If you’re utilizing the air compressor at a gas station, be sure to park so the hose will reach all four wheels. Insert change into the machine until you hear the motor running. Fill every tire by putting the end of the hose over the valve stem and pressing on the lever.
Utilizing a gas station air compressor signifies your tires may be hot. When it is vital to adjust inflation pressure when tires are hot, place their pressure to 4 psi (14 kPa) above the recommended cold inflation pressure. Recheck the inflation pressure when the tires are cold.  After filling your tires, use the gauge to check the pressure. Now, it’s ok if you overfilled the tires because you may always let some out air. Never drive on overinflated tires. Overinflation can result in decreased traction wear and decreased effect absorption. 
6. REPEAT: CHECK TIRE PRESSURE MONTHLY Make the procedure a monthly ritual. Checking your tire pressure is the ideal way to ensure your tires never dip far beneath the PSI that is best. 
TIRE PRESSURE GAUGE ACCURACY Accuracy matters and you should remember that when selecting a gauge. If you need help to be sure to contact us. We’re still open and ready to serve you.