2012 Chrysler 300 Owner Manual SRT - Page 400

398 STARTING AND OPERATING Check tire pressures more often if subject to a wide range Tire Pressures For High Speed Operation of outdoor temperatures, as tire pressures vary with The manufacturer advocates driving at safe speeds within posted speed limits. Where speed limits or conditemperature changes. tions are such that the vehicle can be driven at high Tire pressures change by approximately 1 psi (7 kPa) per speeds, maintaining correct tire inflation pressure is very 12°F (7°C) of air temperature change. Keep this in mind important. Increased tire pressure and reduced vehicle when checking tire pressure inside a garage, especially in loading may be required for high-speed vehicle operathe Winter. tion. Refer to original equipment or an authorized tire Example: If garage temperature = 68°F (20°C) and the dealer for recommended safe operating speeds, loading outside temperature = 32°F (0°C) then the cold tire and cold tire inflation pressures. inflation pressure should be increased by 3 psi (21 kPa), WARNING! which equals 1 psi (7 kPa) for every 12°F (7°C) for this outside temperature condition. High speed driving with your vehicle under maxiTire pressure may increase from 2 to 6 psi (13 to 40 kPa) mum load is dangerous. The added strain on your during operation. DO NOT reduce this normal pressure tires could cause them to fail. You could have a build up or your tire pressure will be too low. serious accident. Do not drive a vehicle loaded to the maximum capacity at continuous speeds above 75 mph (120 km/h).