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Compass Marine How To | all galleries >> Welcome To >> Engine - Winter Freeze Protection > Found The Problem
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Found The Problem

Found The Problem

The good news is this owner now has a new heat exchanger. The bad news is it cost him a lot more than a couple of extra gallons of antifreeze would have...!.

I also found the cause of his cooling issues, zinc crud. Change your engine zincs often or they can shed and plug your HX.

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Bob 02-Mar-2013 15:52
Why would PG be used to winterizing an engine instead of EG??