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The coolant (50-50 anti-freeze and water) needs to be flushed out and replaced.
Any advice on how to do it??
I have Crusader gas engines with heat exchangers.
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Home Port: Stuart, FL
Vessel Info: 1988 36' Convertible with new 8.1 Crusaders.
Exceptional condition, inside, outside, bilges and engines.
My college chemistry professor said "antifreeze never goes bad, only the rust inhibitor wears out". In my 50 years of boat and car ownership I have never replaced antifreeze, just added rust inhibitor once a year. And I keep boats and cars over 10 years and never had a problem. I buy it in the autoparts store, looks like milk.
Capt. George
