Engine cooling system

This section comes used in it's entirety from a large articles comes from samarins.com

Engine overheating causes serious engine damage. In order to avoid the engine overheating:
Check the coolant level periodically. It should be at least at the "min" mark in the coolant reservoir. If it's lower, add the coolant bringing the level to the "max" mark.
Caution: Never open the radiator or the coolant overflow reservoir when engine is hot!

 

If you discover a coolant leak, have it fixed as soon as possible - it may cause engine overheating.
If you note that the engine temperature starts rising higher than normal, have your engine inspected before it will cause serious problems.
Check the front of the radiator - sometimes it may be obstructed with leaves or dust. It's one of the possible reasons for the overheating. Look at the image on the left. This Buick' radiator is clogged. Try to avoid using front end covers - they cause restrictions to the air flow through the radiator