Saab: Saab Coolant

"Matt" <freeserve.co.uk> wrote in message
news:bsps09$3m8$svr.pol.co.uk... 

If its blue put more blue stuff in. If its green put more green stuff in. If
its red put more red stuff in.

You can't really go wrong with the above. If your doing a full drain, flush
and re-fil the red Organic Acid stuff is bloody good. I use it in mine.

Matt wrote: 

You could try Comma antifreeze products, Comma Xstream Green or Red. It
means that I don't really know if it is suitable, but I'm giving the red
stuff a try. Seems to have heavy duty corrosion protection.

OK, Thanks.
"Johannes H Andersen" <com> wrote in message
news:com... 

On Mon, 29 Dec 2003 19:09:03 +0000, Johannes H Andersen
<com> wrote:
 

Just a note or two... Saab specs a low silicate anti freeze. I'm not
UK familiar, but in the US we have Zerex G05. A coolant that meets
Mercedes specs will do it too. Be _very_ careful changing coolants
these days. The old green type is usually very high silicate. That's
not what you want. Organic Acid types can be OK but require a very,
very clean environment - even *air* in the system causes problems
with Texaco's Dexcool.

Bob wrote: 

The Comma XStream Red is silicate free http://www.commaoil.com

Bob, you got me looking when you mentioned the Dexcool and Zerex G05
coolants. You caution the use of organic acid types, yet it appears
the Zerex is that type, per the following blurb on its site: "Utilizes
hybrid organic acid technology to minimize inhibitor depletion"

Query, do all green coolants contain high silicate content? I have
used generic Autozone and/or Napa green coolants for 15 years on my
'88 9KT, draining/filling it yearly, always using distilled water, and
water pump lube, w/o incident, though I have had to replace the water
pump twice (the last time being this year).

On Mon, 29 Dec 2003 23:29:40 +0000, Johannes H Andersen
<com> wrote:
 

On Tue, 30 Dec 2003 14:18:33 -0500, cs <> wrote:
 

Yes, it's a long story :-)

The Dexcool and compatibles are a particular type of organic acid
technology. There is a big difference between those and the G05
type of coolants. The problem is not so much with the org-acid
but with the particular type of org-acid. They key to identifying
the type (without an MSDS sheet) is to look for "long life" or
"5 year life". Those are the controversial products.

It appears that the problems with the long life org-acids like
Dexcool are actually impurity related. In fact, some claim that
Dexcool itself is the only issue and that other manufacturers
products are better made. I've heard of some tests showing
impurities in Dexcool right out of the drum. If you want a good
scare, do a web search on "dexcool" and "corrosion" or some
similar terms. There are thousands of pages on the problems.
There's even at least one class action suit:
http://www.cwcd.com/CM/ClassActions/ClassActions35.asp

GM claims that the problems are only with radiators that are
allowed to go low and pull air into the systems but their own
documents show that they also have problems with sealers that
are used in the factory, leftover solder, etc.
 

Generally, yes. In fact, silicates are touted as a positive thing
by Prestone. They revolutionized the industry when first introduced
as a corrosion preventive. But, now we are supposed to be using low
phosphate and low silicate. I don't know what was originally spec'ed
for a 1988. Yearly changes would be a definite plus. THe only down
side I see is that the high silicates cause water pump wear and some
claim head gasket wear. The lube you are adding may offset that.

In article <com>, cs <> spouted
forth into alt.autos.saab... 

What's this waterpump lube?

I'm for anything that may help keep my 900T16S on the road and running
sweet for longer.
--
Carl Robson
(The poster formerly known as Skodapilot)
http://www.bouncing-czechs.com