An automotive cooling system must perform several functions
1. Remove excess from the engine
2. Maintain a consist engine temperature
3. Help a cold engine warm-up quickly
4. Provide a means of warming the passenger compartment

Automotive cooling systems operate around 180-212 degree F
Engine coolant is used to remove heat from the cylinder to the radiator where in is then dissipated.
Engine coolant mixture should be approximately a 50/50 mixture of coolant and water.

Water soluble oil is used as a lubricant in all coolants systems components
Coolant uses lubricant in coolant to lubricate the water pump.
Coolant is a mixture of water and antifreeze. (Normally 50/50 mixture)
Some people refer to coolant as antifreeze

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