See also:

Cooling System – Drain, Flush, And Refill
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 de ...

Vacation/Storage
Before you store your vehicle, or keep it out of service (i.e., vacation) for two weeks or more, run the air conditioning system at idle for about five minutes, in fresh air with the blower sett ...

Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of coolant, and to ensure that engine coolant (antifreeze) will return to the radiator from the coolant recovery bottle. The cap should be inspec ...