Each type of tire needs to have a certain amount of air installed to provide proper contact with the road. The recommended pounds per inch reading needed for your tires is typically noted on the tire's sidewall. A simple tire gauge put over the valve stem lets you know in a second if the tire needs more or less air. If underinflated, more friction occurs between the tire edges and the road. If overinflated, the pressure is on the center of the tire. In either case, the affected areas are going to wear out more quickly than normal. The problem may also lead to an unexpected blow-out.A variety of factors can reduce tire pressure including extreme temperature changes. It is a good idea to check tires periodically to ensure they are inflated properly. If unsure how to check the pressure or are unable to locate the pressure designation, come see us at Karl Flammer Ford Inc.