wat happens with just tap water in radiator of 3800?
vs distilled? Maybe some more corrosion, but nothing major...Depends on how good the tap water is. As long as you mix with the coolant 50/50 to maintain the -30 degrees freezing point.
Tap water will cause nearly instant electrolysis, rust and corrosion. Never use tap water alone, ALWAYS mix it with the manufacturer's recommended type of coolant.
Straight water will freeze when the weather gets cold and prevent it from starting
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