See full article for additional tips and a video.
IMPORTANT: Every vehicle has a manufacturer recommended tire pressure range. Tire or air pressure is measured in PSI (pounds per square inch). The PSI on the tire is the MAXIMUM level the tire can hold so DO NOT use this as a guide.
You will need:
- Tire pressure gauge (either a standard or a digital)
- Wipes for cleaning your hands
Step-by-step guide:
- The only way to know if a tire is truly at the appropriate pressure is by using a gauge. When you check tire pressure, be sure to check all four tires.
- Most gas stations and some car washes have air machines. Don't insert your money until you're ready to start filling your tires, as some machines run on timers.
- Find the recommended PSI for your vehicle. The best place to locate this information is on the inside of the driver's side doorjamb. As a back-up, check your owner's manual.
- It's best to let your tires cool and rest prior to checking their pressure. If you check them while they're hot, you will not get an accurate reading.
- Locate the small little hose on the tire that is the air valve. Remove the cap and keep it someplace safe like your pocket. You don't want it to roll away or get blown or kicked under your car.
- Press the tire pressure gauge against the valve. Use firm pressure and ensure that the seal between the gauge and the valve is completely solid. Release after a second or two. NOTE: If you hear any loud hissing, you're letting air escape and you won't get an accurate reading.
- To read the tire pressure gauge, look at the piece that should have been pushed out from the end of the metal tube (if you are using a gauge with a circular dial, simply use the number that the needle indicates). The number that is closest to the metal base is your PSI reading.
- Add (or release) air to match the recommended limit. The air machine nozzle must be firmly and securely pressed onto the tire valve or you will let air out of the tire.
- Check the pressure again to make sure it's correct. And remember, never overfill the tires.
- Repeat for each of the remaining tires. If you feel really motivated, check your spare tire, too!
