2009 Chrysler PT Cruiser Owner Manual - Page 327

MAINTAINING YOUR VEHICLE 325 Check the coolant recovery bottle tubing for brittle rubber, cracking, tears, cuts and tightness of the connection at the bottle and radiator. Inspect the entire system for leaks. Cooling System - Drain, Flush And Refill The system should be drained, flushed, and refilled at the intervals shown in the "Maintenance Schedules" in Section 8 of this manual. If the engine coolant (antifreeze) is dirty or contains a considerable amount of sediment, clean and flush with a reliable cooling system cleaner. Follow with a thorough rinsing to remove all deposits and chemicals. Properly dispose of the old engine coolant (antifreeze). Selection Of Coolant Use only the manufacturer's recommended engine coolant (antifreeze). Refer to "Fluids, Lubricants and Genuine Parts" in this section for the correct fluid type. CAUTION! • Mixing of engine coolant (antifreeze) other than specified HOAT engine coolant (antifreeze), may result in engine damage and may decrease corrosion protection. If a non-HOAT engine coolant (antifreeze) is introduced into the cooling system in an emergency, it should be replaced with the specified engine coolant (antifreeze) as soon as possible. • Do not use water alone or alcohol-based engine coolant (antifreeze) products. Do not use additional rust inhibitors or antirust products, as they may not be compatible with the engine coolant (antifreeze) and may plug the radiator. (Continued) 7