[C320-list] Which coolant for Yanmar 3YM30 in Australia?

[David Prudden]

Just be sure to avoid mixing the newer orange antifreeze with green antifreeze. When mixed, they tend to turn to sludge and won’t circulate. The orange is a newer technology, meant to help avoid corrosion in aluminum and copper engine parts. 

David Prudden
Teachers Pet II
2001 #787

Sent from my iPhone

> On Apr 9, 2022, at 11:08 AM, sail-ability sail-ability <sail-ability at sympatico.ca> wrote:
> 
> Any of the Prestone new antifreezes are compatible with the engine metals. I use the premix as it's easier to use. These products are lifetime limited so every other year, I drain the engine coolant from the spigots designed for this and refill the engine. This is not a complete coolant change as there is still 4L or so in the hot water heater. Draining the hot water heater is a bit of a mess and not required. Adding fresh coolant to the engine every other year or so, works to keep good coolant in the system.
> Regards
> JohnM
> 1999#574
> 
> 
>   ------ Original Message ------
>   From: smith.blazer.72 at gmail.com
>   To: C320-List at catalina320.com
>   Sent: Saturday, April 9, 2022 8:11 AM
>   Subject: Re: [C320-list] Which coolant for Yanmar 3YM30 in Australia?
> 
>         I use yanmar. It is premix 50/50 and red.
> 
> On Sat, Apr 9, 2022 at 7:21 AM David Hayes <davidhayes1 at hotmail.com> wrote:
> 
> >
> > Hi all,
> > I’ve decided to take over the regular engine servicing and would be
> > grateful if any other Aussie owners out there can tell me which coolant to
> > use - the Havoline product recommended in the service manual is not readily
> > available and I am getting conflicting advice from local retail outlets
> > regarding which product I should use.  The coolant in the boat now is
> > green/blue.
> > Any feedback appreciated!
> >
> > Regards, David Hayes
> > 2006 Harlequin
> >
> > __________________
> > David Hayes
> > Mobile: 0478 956 056<tel:0478%20956%20056>
> > 20 Cooks Outlet Road
> > Loch Vic 3945
> >
> 
> 
> 
>