2010 Jeep Grand Cherokee Owner's Manual - Page 386

MAINTAINING YOUR VEHICLE 385 If an examination of your engine compartment shows no • Make sure that the radiator and coolant recovery evidence of radiator or hose leaks, the vehicle may be bottle hoses are not kinked or obstructed. safely driven. The vapor will soon dissipate. • Keep the front of the radiator clean. If your vehicle is equipped with air conditioning, keep the front of the • Do not overfill the coolant recovery bottle. condenser clean. • Check engine coolant (antifreeze) freeze point in the radiator and in the coolant recovery bottle. If engine • Do not change the thermostat for Summer or Winter operation. If replacement is ever necessary, install coolant (antifreeze) needs to be added, contents of ONLY the correct type thermostat. Other designs may coolant recovery bottle must also be protected against result in unsatisfactory cooling performance, poor gas freezing. mileage, and increased emissions. • If frequent engine coolant (antifreeze) additions are required, or if the level in the coolant recovery bottle Brake System does not drop when the engine cools, the cooling In order to assure brake system performance, all brake system components should be periodically inspected. system should be pressure tested for leaks. Refer to "Maintenance Schedule" for further information. • Maintain engine coolant (antifreeze) concentration at 50% HOAT engine coolant (antifreeze) (minimum) and distilled water for proper corrosion protection of your engine, which contains aluminum components. 7