2010 Jeep Grand Cherokee Owner Manual SRT8 - Page 334

MAINTAINING YOUR VEHICLE 333 If an examination of your engine compartment shows no • Maintain engine coolant (antifreeze) concentration at evidence of radiator or hose leaks, the vehicle may be 50% HOAT engine coolant (antifreeze) (minimum) safely driven. The vapor will soon dissipate. and distilled water for proper corrosion protection of your engine which contains aluminum components. • Do not overfill the coolant recovery bottle. • Make sure that the radiator and coolant recovery • Check engine coolant (antifreeze) freeze point in the bottle overflow hoses are not kinked or obstructed. radiator and in the coolant recovery bottle. If engine coolant (antifreeze) needs to be added, contents of • Keep the front of the radiator clean. If your vehicle is equipped with air conditioning, keep the front of the coolant recovery bottle must also be protected against condenser clean. freezing. • If frequent engine coolant (antifreeze) additions are • Do not change the thermostat for Summer or Winter required, or if the level in the coolant recovery bottle operation. If replacement is ever necessary, install only does not drop when the engine cools, the cooling the correct type thermostat. Other designs may result system should be pressure tested for leaks. in unsatisfactory coolant performance, poor gas mileage, and increased emissions. 7