2015 Dodge Durango Owner Manual - Page 621

MAINTAINING YOUR VEHICLE 619 If an examination of your engine compartment shows no • Make sure that the coolant expansion bottle overflow evidence of radiator or hose leaks, the vehicle may be hoses are not kinked or obstructed. safely driven. The vapor will soon dissipate. • Keep the front of the radiator clean. If your vehicle is • Do not overfill the coolant expansion bottle. equipped with air conditioning, keep the front of the condenser clean. • Check the coolant freeze point in the radiator and in the coolant expansion bottle. If engine coolant (anti- • Do not change the thermostat for Summer or Winter freeze) needs to be added, the contents of the coolant operation. If replacement is ever necessary, install expansion bottle must also be protected against freezONLY the correct type thermostat. Other designs may ing. result in unsatisfactory engine coolant (antifreeze) performance, poor gas mileage, and increased emis• If frequent engine coolant (antifreeze) additions are sions. required, the cooling system should be pressure tested for leaks. Brake System In order to assure brake system performance, all brake system components should be inspected periodically. Refer to the "Maintenance Schedule" for the proper maintenance intervals. • Maintain engine coolant (antifreeze) concentration at a minimum of 50% OAT coolant (conforming to MS.90032) and distilled water for proper corrosion protection of your engine which contains aluminum components. 7