Re: Radiator coolant/water ratio?
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The higher the coolant antifreeze ratio... The less cooling efficiency you get.
The specific heat of antifreeze is less than that of water.
This means that for a given temperature change, the antifreeze will carry less heat each time it circulates from engine to radiator and back.
So a 50% / 50% ratio of coolant concentrate to water provides good corrosion protection but less cooling effectiveness.
A 33% ratio of coolant concentrate to 67% water, will give better cooling efficiency in Australian climate conditions and good corrosion protection.
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