Tire Pressure Tips

Tire pressure is a measure of the amount of air in a vehicle’s tires in pounds per square inch.  Proper tire pressure will maximize tire life and wear, and it will affect fuel economy as well due to less rolling resistance in the tire.

A common misconception when determining tire pressure, is to go off of what the tire says itself.  When the manufacturer actually has their own specifications for tire pressure settings.  It is located inside the door on the drivers side inner door wall.  It will give you front, rear and spare tire pressure settings.  The number on the tire is actually the maximum allowable tire pressure, not the recommended tire pressure.

You should check the tire pressure in your vehicle monthly to ensure safety.  Under inflation will cause the tire to wear rapidly on the outside edges, it will also cause the side wall of the tire to bulge which creates excess heat in the tire and potentially cause the side wall to blow out.  Almost all tire blowouts can be traced back to under inflation.  Over inflation will cause the center of the tire to wear rapidly, because the tire is shaped more like a doughnut.

Tire pressure can be affected 1-2 PSI for every 10  degree temperature change.  For example, going  from 90 degrees to 40 could cause as much as a 10 PSI drop in tire pressure.

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