Joe,

I think you are right. And I read the same about how poisonous the two are.

I am using the pink stuff for winterisation and cross my fingers that the 
rubber parts don’t mind it. The two primary concerns are the impeller in the 
water pump and the joker valve in the head. The worst scenario is that I 
replace either or both every so often. Compared to other expenses of operating 
a sailboat these are acceptable.

Marek

From: Della Barba, Joe via CnC-List
Sent: Friday, October 14, 2016 14:50
To: cnc-list@cnc-list.com
Cc: Della Barba, Joe
Subject: Re: Stus-List Winterizing 2GM20F

???
I think you are trying to find engine antifreeze. I have never tried that, I 
always have used the pink propylene glycol sold all over the place to winterize 
water systems in boats, vacation cottages, and RVs. It has no ethylene glycol 
in it, you can drink it. I use the same stuff for the engine and the water 
tanks.
This is not engine coolant and is only used for winter layup. Someone on a 
forum somewhere also explained that while ethylene glycol is quite poisonous to 
DRINK, it does about the same harm as propylene glycol if dumped overboard.
Joe
Coquina
Still two months away from antifreeze :)
-----Original Message-----
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Steve Thomas 
via CnC-List
Sent: Friday, October 14, 2016 2:44 PM
To: cnc-list@cnc-list.com
Cc: Steve Thomas
Subject: Re: Stus-List Winterizing 2GM20F

You might think that, but it is not.
Recochem used to make a propylene glycol engine antifreeze here that was widely 
sold under various brand names, notably Prestolite, but they don't anymore. It 
came as a something of a shock when it was no longer available. Some automotive 
speed shops have a version that is imported from the States, but it is absurdly 
expensive. None of the former retailers I talked to, including Canadian Tire, 
could give me a reason for its disappearance from the marketplace. There is 
sometimes available a premium plumbing antifreeze that contains propylene 
glycol in some proportion but it doesn't say in what proportion, and it still 
contains ethyl alcohol. In short, it is difficult and expensive to find here, 
and for no apparent reason. I have resigned myself to using the environmentally 
unfriendly ethylene glycol.

Steve Thomas
C&C27 MKIII
Port Stanley, ON

---- "Della Barba wrote:
??????
Propylene glycol is very easy to get around here. I would think it would be a 
very easy thing to find in Canada too. You all do have RVs and vacation houses 
up there, right???
Joe
Coquina
C&C 35 MK I
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Marek 
Dziedzic via CnC-List
Sent: Friday, October 14, 2016 1:06 PM
To: cnc-list@cnc-list.com
Cc: Marek Dziedzic
Subject: Re: Stus-List Winterizing 2GM20F

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.

Marek
1994 C270 “Legato”
Ottawa, ON

From: David Platt via CnC-List
Sent: Friday, October 14, 2016 10:37
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc: David Platt
Subject: Re: Stus-List WInterizing 2GM20F


Tim

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?

Respectfully

david

C&C 32 Wanderer


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