2004 Ford Mustang Owner Guide 3rd Printing - Page 212

Maintenance and Specifications TIRE CARE Improper or inadequate vehicle maintenance can also cause tires to wear abnormally. Here are some of the important maintenance items: Inflating your tires Use a tire gauge to check the tire inflation pressure, including the spare, at least monthly and before long trips. You are strongly urged to buy a reliable tire pressure gauge, as automatic service station gauges may be inaccurate. Ford recommends the use of a digital or dial type tire pressure gauge rather than a stick type tire pressure gauge. Use the recommended cold inflation pressure for optimum tire performance and wear. Under-inflation or over-inflation may cause uneven treadwear patterns. Under-inflation is the most common cause of tire failures and may result in severe tire cracking, tread separation or ЉblowoutЉ, with unexpected loss of vehicle control and increased risk of injury. Under-inflation increases sidewall flexing and rolling resistance, resulting in heat buildup and internal damage to the tire. It also may result in unnecessary tire stress, irregular wear, loss of vehicle control and accidents. A tire can lose up to half of its air pressure and not appear to be flat! When weather temperature changes occur, tire inflation pressures also change. A 10° F (6° C) temperature change can cause a corresponding drop of 1 psi (7 kPa) in inflation pressure. Check your tire pressures frequently and adjust them to the proper pressure which can be found on the tire label or certification label. If you are checking tire pressure when the tire is hot, (i.e. driven more than 1 mile [1.6 km]), never "bleed" or reduce air pressure. The tires are hot from driving and it is normal for pressures to 212 2004 04- Mustang (mus) Owners Guide (post-2002-fmt) USA English (fus)