2011 Dodge Challenger Owner Manual SRT8 - Page 378

376 MAINTAINING YOUR VEHICLE humidity accumulating on the radiator and being vapor- • Maintain coolant concentration at 50% HOAT engine ized when the thermostat opens, allowing hot coolant to coolant (minimum) and distilled water for proper enter the radiator. corrosion protection of your engine, which contains aluminum components. If an examination of your engine compartment shows no evidence of radiator or hose leaks, the vehicle may be • Make sure that the radiator and coolant recovery bottle overflow hoses are not kinked or obstructed. safely driven. The vapor will soon dissipate. • Do not overfill the coolant recovery bottle. • Keep the front of the radiator clean. If your vehicle is equipped with air conditioning, keep the front of the • Check the coolant freeze point in the radiator and in condenser clean. the coolant recovery bottle. If antifreeze needs to be added, the contents of the coolant recovery bottle must • Do not change the thermostat for Summer or Winter operation. If replacement is ever necessary, install also be protected against freezing. ONLY the correct type thermostat. Other designs may • If frequent coolant additions are required, or if the result in unsatisfactory coolant performance, poor gas level in the coolant recovery bottle does not drop when mileage, and increased emissions. the engine cools, the cooling system should be pressure tested for leaks.