Every driver should know how to check tire pressure and how to inflate tires as these maintenance procedures are essential for the safe operation of your automobile. Checking tire pressure regularly can decrease tire wear, increase fuel economy, improve handling, and help prevent blow-outs.
The manufacturer's suggested tire pressures for your vehicle can be found in the owners manual and usually inside one of the door jams. The front and rear pressures are often the same, but sometimes different pressures are recommended for safe handling. The pressure listed on the tire itself is the maximum pressure the tire should be inflated to and not a recommended pressure. Always check the pressure when the tires are cold as driving will heat up the air inside them causing it to expand and artificially increasing readings.
Each wheel will have a valve stem used to fill it with air and check its pressure. Locate the stem and remove the cover (if present) by unscrewing it. Place your pressure gauge firmly over the stem for a couple of seconds to allow the pressure to stabilize and then check the reading. You may hear the sound of air leaking from around the gauge as you initially press it onto the valve. If you continue to hear air escaping your reading will not be correct - make sure that the valve and gauge are clean, and try again.