2013 Dodge Durango Owner's Manual - Page 632

630 MAINTAINING YOUR VEHICLE 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 ONLY expansion bottle must also be protected against the correct type thermostat. Other designs may result in freezing. unsatisfactory engine coolant (antifreeze) performance, poor gas mileage, and increased emissions. • If frequent engine coolant (antifreeze) additions are required, the cooling system should be pressure tested Brake System for leaks. In order to assure brake system performance, all brake • Maintain engine coolant (antifreeze) concentration at a system components should be inspected periodically. minimum of 50% OAT coolant (conforming to MS-12106) Refer to the "Maintenance Schedule" for the proper and distilled water for proper corrosion protection of maintenance intervals. your engine which contains aluminum components.