Checking Tire Pressure

It is important to check your vehicle's tire pressure at least once a month for the following reasons:

  • Most tires may naturally lose air over time.
  • Tires can lose air suddenly if you drive over a pothole or other object or if you strike the curb when parking.
  • With radial tires, it is usually not possible to determine under inflation by visual inspection.

Purchase a tire pressure gauge to keep in your vehicle. Gauges can be purchased at tire dealerships, auto supply stores, and other retail outlets.

The vehicle manufacturer's recommended tire inflation pressure is the proper psi when a tire is cold.

The term cold does not relate to the outside temperature. Rather, a cold tire is one that has not been driven on for at least three hours. When you drive, your tires get warmer, causing the air pressure within them to increase. Your tires can get warm after just 1 mile of driving.

Therefore, to get an accurate tire pressure reading, you must measure tire pressure when the tires are cold or compensate for the extra pressure in warm tires.



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