Proper maintenance of your car can be important for its long life and safe operation. Your tires are one of the most important parts of your car and checking the tire pressure is important. Regular maintenance is crucial to the safe and reliable performance of your vehicle.
When to check the tire pressure
Tire pressure should be checked once a month when tires are cold. Tire pressure can vary 1-2 pounds per square inch (psi) for every 10-degree difference in ambient temperature. Also you should consider checking your tire pressure more frequently in the following instances:
- If you run over a sharp object
- If you strike a curb
- If the weather suddenly changes from warm to cold
How to check the amount of pressure in your tires
- Remove the cap from the air valve of the tire by unscrewing it counterclockwise.
- Press the tire gauge against the open valve stem. You will hear a hiss of air (perfectly normal).
- Read the air pressure gauge. The number will appear on the dial or digital screen of the tire gauge.
- Compare this number with the recommended tire pressure, found on the driver’s side door jamb.
- Add air or let some out based on the recommendation.
- Replace the tire’s air valve cap by screwing it back on clockwise.
How to inflate the car tires
Follow these steps to successfully inflate the tires to the correct pressure:
- When you pull up to the air compressor, be sure the hose can reach all four tires.
- Remove the stem caps by unscrewing them counterclockwise and set them to the side or put them in your pocket.
- Check your tire’s psi using your own gauge or the gauge on the hose.
- Press the hose nozzle down on the valve stem. Air may flow automatically or you may need to press the lever. You should feel the air flowing or hear the tire inflating.
- Check the tire pressure by removing the hose fitting or releasing the inflation lever. Check the gauge on the hose or with your own gauge.
- Adjust the pressure in all 4 tires the same way.
- Once each tire is properly inflated, replace the valve caps by screwing them on clockwise.