There is a school of thought that maintains that the impeller might deteriorate 
in the antifreeze, especially, since most of the AF is Ethylene Glycol. IIRC, 
the better one would be Propylene Glycol, but it is not easily available.

Btw. if AF drains, it is only better (you don’t have to worry about water 
diluting the AF.

1994 C270 “Legato”
Ottawa, ON

From: David Platt via CnC-List
Sent: Friday, October 14, 2016 10:37
Cc: David Platt
Subject: Re: Stus-List WInterizing 2GM20F


I am curious about why you advocate taking the impeller out.  Won't antifreeze 
drain out of your engine when you take the cover off the water pump?



C&C 32 Wanderer

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