Doesn't the engine anti-freeze contain rust inhibitors and the rv stuff doesn't?

Mike
PERSUASION
C&C 37 K/CB
Long Sault

> On Oct 14, 2016, at 2:49 PM, Della Barba, Joe via CnC-List 
> <cnc-list@cnc-list.com> wrote:
> 
> ???
> 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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