[C320-list] anti freeze

[Mike Rauh]

On even years I change all the anti-freeze and odd years I just drain off
1/2-gal.  I always run my engine to stir up the sediment.  Then I open a
drain hose and let the contents pour into a jar.  I never open the fill-cap
while the anti-freeze is hot.  During even years I also remove and wash out
the expansion tank.

I've been using Dexcool which I buy in an auto supply store.

Mike
On Your Mark  #408

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Rod Boer
Sent: Friday, April 04, 2014 7:32 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] anti freeze

Warren,

Each year during decommissioning I open the cocks on the engine and replace
whatever comes out which is at least a half a gallon even though I use the
long term antifreeze which is advertised as 5 year 150000 mile. I do this
mainly because it is an aluminum engine and I want to keep the anticorrosion
level high. It is cheap insurance.

Rod Boer, #688
 

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Warren Updike
Sent: Thursday, April 03, 2014 6:07 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] anti freeze

I typically drain off about 1/2 gal. of AF each year and replace with new
AF. I wonder if this is an effective procedure. Anyone have a clue?

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

-----Original Message-----
From: dprudden [mailto:dprudden at comcast.net]
Sent: Wednesday, April 02, 2014 5:07 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] anti freeze

Bill,
What color is your antifreeze? If it's the traditional green, then you
should be able to use auto antifreeze. If it's orange, then you have Dexcool
and you absolutely can't mix the two. There is often a reaction between the
two where the antifreeze jells, and ruins the engine, so be sure you know
what type of antifreeze is in your engine. Karl Mielenhausen wrote a good
article a few years ago on the procedure to change antifreeze types (it's
easy to do-I did it last fall). 

BoatUS recommends changing coolant every 2 years. The antifreeze chemicals
still work-apparently it's the lubricating chemicals that are no longer
effective. I thought every 5 years was enough....I guess I need to rethink
that.

David Prudden
#787

Sent from my iPhone

> On 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