IIRC, the pink non-toxic antifreeze isn't supposed to be diluted with water, as that would raise its freezing point, not lower it. IIRC, it is supposed to be used straight out of the bottle. If you're talking the toxi anti-freeze, yes, it should be diluted 1:1 with water, but IMHO shouldn't be used in the raw water side of a boat's cooling system, since it will discharge to the ocean.
Originally Posted by TrueBlue
Rick, Is this a trick question?
Anti-freeze is only effective when mixed in a 50% solution with water. It's of course, used in the closed fresh water cooling section; but during winter layup, I prefer to run it through the raw water section as well.
As you clearly pointed out in your previous post, sea water does freeze and there's no assurance all can be drained from the system. The anti-corrosion additives also help protect the c.i. engine components from rusting.
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a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
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—Cpt. Mal Reynolds, Serenity (edited)
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