Warning! Antifreeze is a highly toxic substance. If antifreeze gets on your skin or on painted areas of your car, it must be washed off with water immediately.
The cooling system must be filled with a coolant containing ethylene glycol-based antifreeze, which prevents the coolant from freezing at low temperatures. Antifreeze reduces corrosion and increases the boiling point of the coolant.
The content of antifreeze in the coolant depends on the ambient temperature, however, it should not be less than 50% and should not exceed 70%.
[The article was taken from the website: mitsubishiman]