2010 Jeep Commander Owner's Manual - Page 379

MAINTAINING YOUR VEHICLE 379 • 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 engine coolant (antifreeze) freeze point in condenser clean, also. the radiator and in the coolant recovery bottle. If engine coolant (antifreeze) needs to be added, contents • Do not change the thermostat for Summer or Winter operation. If replacement is ever necessary, install of coolant recovery bottle must also be protected ONLY the correct type thermostat. Other designs may against freezing. result in unsatisfactory cooling performance, poor gas • If frequent engine coolant (antifreeze) additions are mileage, and increased emissions. required, or if the level in the coolant recovery bottle does not drop when the engine cools, the cooling Brake System In order to assure brake system performance, all brake system should be pressure tested for leaks. system components should be periodically inspected. • Maintain engine coolant (antifreeze) concentration at Refer to the "Maintenance Schedule" in Section 8 for the 50% HOAT engine coolant (antifreeze) (minimum) proper maintenance intervals. and distilled water for proper corrosion protection of your engine, which contains aluminum components. • Make sure that the radiator and coolant recovery bottle hoses are not kinked or obstructed. 7