2009 Dodge Ram 1500 Pickup Owner Manual - Page 461

MAINTAINING YOUR VEHICLE 459 Check the coolant recovery bottle tubing for brittle rub- Refer to the "Maintenance Schedule" in Section 8 for the ber, cracking, tears, cuts and tightness of the connection proper maintenance intervals. at the bottle and radiator. Inspect the entire system for Selection Of Coolant leaks. Use only the manufacturer's recommended engine coolWith the engine at normal operating temperature (but ant (antifreeze). Refer to "Fluids, Lubricants, and Genunot running), check the cooling system pressure cap for ine Parts" in this section for the correct fluid type. proper vacuum sealing by draining a small amount of CAUTION! engine coolant (antifreeze) from the radiator drain cock. If the cap is sealing properly, the engine coolant (anti• Mixing of engine coolant (antifreeze) other than freeze) will begin to drain from the coolant recovery specified HOAT engine coolant (antifreeze), may bottle. DO NOT REMOVE THE COOLANT PRESSURE result in engine damage and may decrease corroCAP WHEN THE COOLING SYSTEM IS HOT. sion protection. If a non-HOAT engine coolant Cooling System - Drain, Flush and Refill (antifreeze) is introduced into the cooling system If the engine coolant (antifreeze) is dirty or contains a in an emergency, it should be replaced with the considerable amount of sediment, clean and flush with a specified engine coolant (antifreeze) as soon as reliable cooling system cleaner. Follow with a thorough possible. rinsing to remove all deposits and chemicals. Properly (Continued) dispose of old engine coolant (antifreeze) solution. 7