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Answer antifreeze is necessary to increase the boiling point---greatly decrease the freeing point---provide water pump lubricants and rust inhibitors for the entire cooling system---block --blockheater radiater and heater corePut in a 50/50 mixture of Anti-Freeze and distilled water. Pure water is a bad idea because the engine will overheat at a lower temperature with just pure water and it will also freeze. Water also provides no lubrication or protection for the system.
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Q: What is the different between coolant and water can you just put water or do you need both in a Buick 1985?
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