2015 Dodge Charger Owner Manual - Page 434

432 STARTING AND OPERATING At least once a month: mile (1.6 km) after sitting for a minimum of three hours. The cold tire inflation pressure must not exceed the • Check and adjust tire pressure with a good quality maximum inflation pressure molded into the tire sidepocket-type pressure gauge. Do not make a visual wall. judgement when determining proper inflation. Tires may look properly inflated even when they are under- Check tire pressures more often if subject to a wide range of outdoor temperatures, as tire pressures vary with inflated. temperature changes. • Inspect tires for signs of tire wear or visible damage. Tire pressures change by approximately 1 psi (7 kPa) per 12°F (7°C) of air temperature change. Keep this in mind CAUTION! when checking tire pressure inside a garage, especially in After inspecting or adjusting the tire pressure, althe winter. ways reinstall the valve stem cap. This will prevent Example: If garage temperature = 68°F (20°C) and the moisture and dirt from entering the valve stem, outside temperature = 32°F (0°C) then the cold tire which could damage the valve stem. inflation pressure should be increased by 3 psi (21 kPa), Inflation pressures specified on the placard are always which equals 1 psi (7 kPa) for every 12°F (7°C) for this "cold tire inflation pressure." Cold tire inflation pressure outside temperature condition. is defined as the tire pressure after the vehicle has not been driven for at least three hours, or driven less than 1