[C320-list] anti freeze

[Warren Updike]

The antifreeze issue always puzzled me. In our, now 20 yr old Perkins, I
drained all the old AF but didn't flush with fresh water as I later learned
is a good practice especially if you don't know what type of AF is in there.
The reason, I've heard, is that some older type AF is not compatible with
others and can actually gel-up if improperly mixed. Not a bad idea to flush
anyway.
So, what I now use is a 50/50 pre-mix I buy at an auto store. If you mix
your own AF be sure to use only distilled water. I've also heard that all
modern auto AF is compatible with iron and alum engines, so may no longer be
a problem. But, if you don't know, FLUSH first.

Warren and Pattie Updike
1994 C320 "Warr de Mar" #62

-----Original Message-----
From: JJ Morrison [mailto:sail-ability at sympatico.ca] 
Sent: Wednesday, April 02, 2014 2:26 PM
To: Catalina List
Subject: Re: [C320-list] anti freeze

If your engine is 6 years old and still has the original antifreeze in it;
I'd suggest that you replace it with new stuff. Any good quality automotive
antifreeze will suffice. If you change out the antifreeze don't forget that
there is about a litre in the hot water heat exchanger and I believe there
is an article on the website describing how to blow it out. It's just a
matter of disconnecting one of the hoses that leads to the  hot water tank
and blow into it. You should close off all of the engine antifreeze drain
cocks so that the engine catches the antifreeze from the hot water heat
exchanger, and then drain the engine again. If you are handy this should
make sense.CheersJohnM1999#574

> Date: Wed, 2 Apr 2014 12:11:23 -0400
> From: jcmeyers7 at gmail.com
> To: C320-List at catalina320.com
> Subject: Re: [C320-list] anti freeze
> 
> I think Yanmar required Dex Cool which you can get at any auto supply
store.
> 
> John Meyers
> Wind Chime #406
> Muskegon MI
> 
> 
> 
> On Wed, Apr 2, 2014 at 12:06 PM, <wflowe3 at aim.com> wrote:
> 
> >
> > my antifreeze overflow reservoir is empty. I have some Prestone auto
> > antifreeze, does it make any difference what kind I use?  2008 Yanmar
> > diesel.
> >
> > Bill
> > #1146
> >