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Anti-freeze is just that keeps the water from freezing so you run a higher % in winter.
Anti freeze is a very poor coolant. Your engine will run hot on straight Anti-freeze
Water is the best cooling (add water wetter) the engine but will cause corrosion in the block.
That is why you mix anti-freeze and water. More water in summer (up to 70%) and in winter more anti-freeze (up to 70 %)
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