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Car Forum / BMW Cars / September 2006

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Coolant Color/Type

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smb7420@aol.com - 27 Sep 2006 04:53 GMT
Well, i had the thermostat changed on my car when it had a check
coolant issue and it kept draining
Original post here:
http://groups.google.com/group/alt.autos.bmw/browse_thread/thread/6bff7248a1b610
f6/cbd2697a9b2a3362?lnk=raot#cbd2697a9b2a3362


However, i wanted to know what color the bmw antifreeze is, the stuff
in there is green, and i've read that its supposed to be blue and if it
isnt, its some harmful aluminum engine destroyer.
Any more info about what to put in there and where to get it(yeah i
know i can grab some from bmw) would be great.
Dave Plowman (News) - 27 Sep 2006 08:22 GMT
> However, i wanted to know what color the bmw antifreeze is, the stuff
> in there is green, and i've read that its supposed to be blue and if it
> isnt, its some harmful aluminum engine destroyer.

You should ask your repairer what make and type of antifreeze he used, but
most are designed to be safe with aluminium these days. It *might* be more
of an issue with the plastic parts BMW use on the cooling system, and how
long it remains effective.

> Any more info about what to put in there and where to get it(yeah i
> know i can grab some from bmw) would be great.

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*A snooze button is a poor substitute for no alarm clock at all *

   Dave Plowman        dave@davenoise.co.uk           London SW
                 To e-mail, change noise into sound.

adder1969@yahoo.co.uk - 27 Sep 2006 12:45 GMT
> However, i wanted to know what color the bmw antifreeze is, the stuff
> in there is green, and i've read that its supposed to be blue and if it
> isnt, its some harmful aluminum engine destroyer.
> Any more info about what to put in there and where to get it(yeah i
> know i can grab some from bmw) would be great.

I wonder if they filled it with screen wash.
BBO - 27 Sep 2006 13:18 GMT
> > However, i wanted to know what color the bmw antifreeze is, the stuff
> > in there is green, and i've read that its supposed to be blue and if it
[quoted text clipped - 3 lines]
>
> I wonder if they filled it with screen wash.

In Norway you can get blue, green or red antifreeze. Blue and green can
be mixed. Red cannot be mixed with either.

One is glycol based, the blue and green. The red is sometimes referred
to as G12. The red one is used on cars with aluminium tops etc., and
isn't so tough on the various engineparts. It's also supposedly
longlife. 5 years vs 3 years for the glycol based green/blue antifreeze.

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azoth@dod.no
------------------------------------------------------------------------
 Wenn im Zweifel, Volleistung!                                 DoD#2101
 '90 BMW 318i '93 Audi 100 2.3E                When in doubt, floor it!

Bill - 27 Sep 2006 14:56 GMT
Well, i had the thermostat changed on my car when it had a check
coolant issue and it kept draining
Original post here:
http://groups.google.com/group/alt.autos.bmw/browse_thread/thread/6bff7248a1
b610f6/cbd2697a9b2a3362?lnk=raot#cbd2697a9b2a3362

However, i wanted to know what color the bmw antifreeze is, the stuff
in there is green, and i've read that its supposed to be blue and if it
isnt, its some harmful aluminum engine destroyer.
Any more info about what to put in there and where to get it(yeah i
know i can grab some from bmw) would be great.
-----

I just changed my coolant and used the Texaco-Havoline DEX-COOL Extended
Life. It meets the aluminum radiator issues and is free of the harmful
corrosion stuff. Here's a link:
http://www.getahelmet.com/jeeps/maint/dexcool/

It's also $10/gallon at Wal-mart or any auto parts store.

Bill in Omaha
'86 535i
Fred W - 28 Sep 2006 15:25 GMT
> Well, i had the thermostat changed on my car when it had a check
> coolant issue and it kept draining
[quoted text clipped - 15 lines]
>
> It's also $10/gallon at Wal-mart or any auto parts store.

...and that's a really bad idea.  Dexcool is an OAT coolant and contains
a large amount of silicates.  Whatever gave you the idea that this was a
good coolant for your BMW?  Or that you should dispense advice about
what coolant to use in other people's BMWs?

Signature

-Fred W

Bill - 28 Sep 2006 17:16 GMT
Bill wrote:
> <smb7420@aol.com> wrote in message
> news:1159329183.416212.61300@m73g2000cwd.googlegroups.com...
> Well, i had the thermostat changed on my car when it had a check
> coolant issue and it kept draining
> Original post here:

http://groups.google.com/group/alt.autos.bmw/browse_thread/thread/6bff7248a1
> b610f6/cbd2697a9b2a3362?lnk=raot#cbd2697a9b2a3362
>
[quoted text clipped - 11 lines]
>
> It's also $10/gallon at Wal-mart or any auto parts store.

...and that's a really bad idea.  Dexcool is an OAT coolant and contains
a large amount of silicates.  Whatever gave you the idea that this was a
good coolant for your BMW?  Or that you should dispense advice about
what coolant to use in other people's BMWs?

--
-Fred W
-----
And it's on...
As usual, Fred, you didn't bother to look at the link I had on my post. If
you DID, then you would have read it contains NO SILICATES. Quote from the
link:
Dex-Cool (ethylene glycol) is identical to the Chrysler & General Motors
factory fill. Havoline had the original patent on Dex-Cool and manufactures
it for GM. The benefits of Dex-Cool are:

 a.. Lower alkalinity
 b.. Contains NO silicates, resulting in longer lasting water pump and
engine seals; longer shelf life.
 c.. It is Nitrite-, borate-, phosphate-, nitrate- and amine-free.
 d.. 100% biodegradable in its pure unused condition.
 e.. Longer lasting (Dex-Cool has been shown to remain above 95% of its
original concentration after 150,000 miles in automobiles)
I only dispense advice based on what I experienced or researched beyond a
reasonable doubt. If someone refutes my info, and I can verify I was
mistaken, then I humbly correct myself and make it available to those I
misinformed. Advice is just that. It's up to the respective owners to use it
or discard it. No warranty implied or offered. Since I see you offering
quite a bit of opinion on this board, what gives you the right? Nothing I've
offered here has been wrong in the years I've been posting.

Bill in Omaha
'86 535i
Fred W - 29 Sep 2006 15:09 GMT
> As usual, Fred, you didn't bother to look at the link I had on my post. If
> you DID, then you would have read it contains NO SILICATES. Quote from the
[quoted text clipped - 10 lines]
>   e.. Longer lasting (Dex-Cool has been shown to remain above 95% of its
> original concentration after 150,000 miles in automobiles)

You are correct.  I did not follow your link.
Not all DexCool coolants are the same. Being DexCool just means the
coolant meets GM's long-life specs for OAT coolant.  Many DexCools are
not silicate free.

But the more important thing is that they all do work based on a low pH
 (Organic *Acid*).  This is especially bad for any cooling systems that
have ferrous metal (cast iron) as any air entrapped in the system will
rust.

Since your into online citations:
http://www.safehydraulics.com/downloads/download_common.cfm?file=MOTORCoolantFea
ture.pdf&folder=brochure#search=%22OAT%20coolant%20BMW%22


Quoting from the above:
"The inhibitor 2-EHA poses another issue: It’s a plasticizer (softens
plastic), so it has been blamed for coolant passage
gasket leakage. Softening (and the resulting distortion) was reported by
Ford, which encountered gasket leakage problems when it tested a
DexCooltype formula on its V8 engines. Ford also saw similar issues with
other gasket materials. That killed the OAT coolant idea for Ford, which
had used a Dex-Cool-like coolant in the ’99 Cougar V6."

BMWs have a lot of plastic in their cooling systems.  BMW does not
recommend OAT Type coolants in their engines, especially the older ones
we are talking about here.

> I only dispense advice based on what I experienced or researched beyond a
> reasonable doubt. If someone refutes my info, and I can verify I was
[quoted text clipped - 3 lines]
> quite a bit of opinion on this board, what gives you the right? Nothing I've
> offered here has been wrong in the years I've been posting.

I agree with what you say about it being up to the reader to decide what
advice to take on usenet.  And I was definitely being a bit too harsh in
my questioning your giving advice.  But my advice is NOT to diverge from
the specifications set out already by the manufacturer, and so does not
really require a whole bunch of expert testimony.

That said, I still believe that using OAT coolant in a BMW is a really
bad idea, especially if it's just to save $5, or because it is
convenient to buy.

YMMV
Signature

-Fred W

bfd - 27 Sep 2006 19:15 GMT
> Well, i had the thermostat changed on my car when it had a check
> coolant issue and it kept draining
[quoted text clipped - 6 lines]
> Any more info about what to put in there and where to get it(yeah i
> know i can grab some from bmw) would be great.

FYI, in the United States, BMW "blue" coolant is Valvoline Zerex G-48
and in the SF Bay Area retails between $22-30 per gallon. If you want
"cheaper," check out SAAB "blue" coolant, it is the same thing, but
cheaper at around $12 per gallon.
Fred W - 28 Sep 2006 15:31 GMT
> Well, i had the thermostat changed on my car when it had a check
> coolant issue and it kept draining
[quoted text clipped - 6 lines]
> Any more info about what to put in there and where to get it(yeah i
> know i can grab some from bmw) would be great.

BMW coolant is blue.  It is actiually re-packaged Glysantin G 48, which
is manufactured by Valvoline in the US and BASF in Europe.
Unfortunately, BMW charges a premium price for their relabeled G 48
(around $25 per gal.).  However, you can buy the excact same stuff in a
bottle with a different label from SAAB or VW at about $15.

In a pinch, I would feel safe using G 05, which is a golden yellow color
(not green).  The formulation of G 05 is very similar to G 48.  Zerex
markets G 05 in the US and you can pick it up at the large chain auto
parts stores (Auto Zone, Pep Boys, etc.) for about $12 a gallon.

Signature

-Fred W

Richard Sexton - 29 Sep 2006 15:52 GMT
>In a pinch, I would feel safe using G 05, which is a golden yellow color
>(not green).  The formulation of G 05 is very similar to G 48.  Zerex
>markets G 05 in the US and you can pick it up at the large chain auto
>parts stores (Auto Zone, Pep Boys, etc.) for about $12 a gallon.

The Mercedes stuff is the same golden yellow safe for plastic/aluminum/ferrous
and is $12/gal at the (MB) dealer.

Signature

  Need Mercedes parts?   http://parts.mbz.org
Richard Sexton       | Mercedes stuff: http://mbz.org
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Bill - 29 Sep 2006 17:00 GMT
smb7420@aol.com wrote:
> Well, i had the thermostat changed on my car when it had a check
> coolant issue and it kept draining
> Original post here:

http://groups.google.com/group/alt.autos.bmw/browse_thread/thread/6bff7248a1
b610f6/cbd2697a9b2a3362?lnk=raot#cbd2697a9b2a3362

> However, i wanted to know what color the bmw antifreeze is, the stuff
> in there is green, and i've read that its supposed to be blue and if it
> isnt, its some harmful aluminum engine destroyer.
> Any more info about what to put in there and where to get it(yeah i
> know i can grab some from bmw) would be great.

BMW coolant is blue.  It is actiually re-packaged Glysantin G 48, which
is manufactured by Valvoline in the US and BASF in Europe.
Unfortunately, BMW charges a premium price for their relabeled G 48
(around $25 per gal.).  However, you can buy the excact same stuff in a
bottle with a different label from SAAB or VW at about $15.

In a pinch, I would feel safe using G 05, which is a golden yellow color
(not green).  The formulation of G 05 is very similar to G 48.  Zerex
markets G 05 in the US and you can pick it up at the large chain auto
parts stores (Auto Zone, Pep Boys, etc.) for about $12 a gallon.

--
-Fred W
-----
The Zerex G 05 is available here. The G 48 seems tougher to locate. I saw a
Zerex pdf and they listed the manufacturers that approved it and the model
years for what mixture. I have it and can send it to you. I lost the link
where I found it. This discussion on coolant is way more than I've ever seen
in one place. More of the DIY folks should be so lucky as to read this
thread! It looks like I should go for the Zerex G 05 in the gold gallon.
After the good water flushing, a 60/40 mix with distilled water sounds good.

FYI - that chart (date unknown, but probably pre-Dex-cool lawsuit) shows
their Dex-cool variant recommended by the manufacturers for Asian 96-on,
SAAB 2000-on, Audi/Porsche/Jag/VW/Land Rover 96-on, and GM 96-on. I guess
it's no surprise for Jag and Land Rover since Ford owns them (!) and
American car makers stick together on some issues.

Bill in Omaha
'86 535i
---
Fred W - 29 Sep 2006 19:54 GMT
> smb7420@aol.com wrote:
>
[quoted text clipped - 42 lines]
> '86 535i
> ---

FYI...  Here are the spec sheets for the various glysantin formulae

https://www.valvoline-technology.com/data/VALV/ValvExtSecurity.nsf/fsZerex?OpenF
rameSet


Signature

-Fred W

 
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