Inflating the tires on your vehicle to the proper air pressure can make a big difference in the mileage you receive out of your tires and could even affect your gas mileage.
When a tire is under inflated, the center of the tire is pushed in, forcing the shoulder of the tire to wear out prematurely. A tire that is over inflated will force the center of the tire to push outward and pull the shoulders of the tire off the road, forcing the center of the tire to wear out prematurely.
When a tire is properly inflated, the tread foot print sit evenly on the road. This will allow the tire to achieve maximum gas mileage and assures the greatest overall handling performance.
The air pressure in tires should be checked once a month.
To find out how much air pressure should be in each tire, check the tire placard located on the door jamb of the driver's front door.