Join Date: Dec 2002
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Rep Power: 15
Don't know how your boat is winterized but mine is done by putting in two ounces of fuel treatment (Biobor) per 30 gallons of fuel and pouring two gallons of -100 antifreeze directly into the sea strainer with the engine running until it exits the through-hull.
If you go out, the antifreeze is ejected when you start the engine, so all you need to do is replace it when you get back in.