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#1121072 - 04/03/08 10:59 AM GM Auto-trac II fluid
widman Offline


Registered: 05/27/02
Posts: 3123
Loc: Bolivia
Can anyone tell me anything other than "go to the dealer" about this auto-trac II fluid? What can replace it? What is the closest type of product?
I know someone who has drained it out of their 2005 trailblazer and discarded it. The dealer says they know nothing about the fluid. Only that it has a part number.
Has anyone analyzed it or does anyone have any ideas?
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#1121114 - 04/03/08 11:38 AM Re: GM Auto-trac II fluid [Re: widman]
The Critic Offline


Registered: 08/30/04
Posts: 18287
Loc: Walnut Creek, CA
It's a dealer only product. No aftermarket equivalent exists.

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#1121151 - 04/03/08 12:19 PM Re: GM Auto-trac II fluid [Re: The Critic]
JHZR2 Offline



Registered: 12/14/02
Posts: 35763
Loc: New Jersey
analysis might be nice. I should have 1/2 qt, ill try to find it and maybe will send it out.

It seems to be a blue-dye ATF. Surely it is improved in some way, but many systems specced for ATF were then specced for ATII, and many systems not specced for ATII do perfect on it.

JMH

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#1121198 - 04/03/08 01:44 PM Re: GM Auto-trac II fluid [Re: JHZR2]
unDummy Offline


Registered: 02/01/03
Posts: 8756
Loc: RI
I wouldn't call blue dye an improvement.
Its has a friction modifier to eliminate the chatter that the xcase suffers from when using regular DexATF. HFM'd ATF????

Royalpurple has a substitute.
I've used DexIII with a doubleshot of LubegardPlatinum.
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#1121199 - 04/03/08 01:45 PM Re: GM Auto-trac II fluid [Re: unDummy]
The Critic Offline


Registered: 08/30/04
Posts: 18287
Loc: Walnut Creek, CA
 Originally Posted By: unDummy
I wouldn't call blue dye an improvement.
Its has a friction modifier to eliminate the chatter that the xcase suffers from when using regular DexATF. HFM'd ATF????

Royalpurple has a substitute.
I've used DexIII with a doubleshot of LubegardPlatinum.





I feel sorry for your customers.


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#1121224 - 04/03/08 02:22 PM Re: GM Auto-trac II fluid [Re: The Critic]
unDummy Offline


Registered: 02/01/03
Posts: 8756
Loc: RI
I feel sorry for those brainwashed by OE.
My customers don't have mechanical failures, even with known weak failure prone OE components. I must be doing something right.
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Those who say it cannot be done, should not interrupt the person doing it.
Your automaker lied!
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#1121254 - 04/03/08 02:48 PM Re: GM Auto-trac II fluid [Re: unDummy]
NHHEMI Offline


Registered: 07/06/07
Posts: 5576
Loc: NH
 Originally Posted By: unDummy
I wouldn't call blue dye an improvement.
Its has a friction modifier to eliminate the chatter that the xcase suffers from when using regular DexATF. HFM'd ATF????

Royalpurple has a substitute.
I've used DexIII with a doubleshot of LubegardPlatinum.


unDummy;

Just curious about something. What is the Royal Purple substitute for the Autotrak fluid? When I checked with them about a year ago the head of RP Tech( Mr. Canitz )told me RP does not make a fluid to replace it.

You aren't by any chance thinking of using Synchromax in place of Versatrak fluid are you?


Edited by NHSilverado (04/03/08 02:49 PM)
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#1121258 - 04/03/08 02:56 PM Re: GM Auto-trac II fluid [Re: NHHEMI]
unDummy Offline


Registered: 02/01/03
Posts: 8756
Loc: RI
Search the RP website with the GM autotrak PN. But, you already know what you need.
_________________________
Those who say it cannot be done, should not interrupt the person doing it.
Your automaker lied!
Is this a spelling/grammar forum or BITOG?

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#1121320 - 04/03/08 04:03 PM Re: GM Auto-trac II fluid [Re: unDummy]
NHHEMI Offline


Registered: 07/06/07
Posts: 5576
Loc: NH
 Originally Posted By: unDummy
Search the RP website with the GM autotrak PN. But, you already know what you need.


The GM part# is 12378508. RP has nothing for it.
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#1121332 - 04/03/08 04:32 PM Re: GM Auto-trac II fluid [Re: NHHEMI]
unDummy Offline


Registered: 02/01/03
Posts: 8756
Loc: RI
_________________________
Those who say it cannot be done, should not interrupt the person doing it.
Your automaker lied!
Is this a spelling/grammar forum or BITOG?

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#1121417 - 04/03/08 06:45 PM Re: GM Auto-trac II fluid [Re: unDummy]
NHHEMI Offline


Registered: 07/06/07
Posts: 5576
Loc: NH
Thanks. I wouldn't do it but you were right they do say they have a substitute. I was clicking on the tranny fluids. Never dawned on me to click the mfg. DUH!
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#1121708 - 04/04/08 07:12 AM Re: GM Auto-trac II fluid [Re: unDummy]
JHZR2 Offline



Registered: 12/14/02
Posts: 35763
Loc: New Jersey
 Originally Posted By: unDummy
I wouldn't call blue dye an improvement.
Its has a friction modifier to eliminate the chatter that the xcase suffers from when using regular DexATF. HFM'd ATF????


I didnt say that blue dye was an improvement. I said that it was effectively blue dyed ATF that surely was improved in some way compared to dex III.

I'm not going to mislead someone in stating to what extent the fluid is FM'd if I do not know. Your doubleshot of lubeguard might be fine... or it might not be optimal. Given the cost of lubeguard platinum, I dont see how that setup can be substantially cheaper than the actual correct fluid - unless a super cheap ATF is being used.

Most cases take what? 1-2 qts of ATII fluid? so at best youre saving $5-10?

JMH

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#1121988 - 04/04/08 01:57 PM Re: GM Auto-trac II fluid [Re: JHZR2]
widman Offline


Registered: 05/27/02
Posts: 3123
Loc: Bolivia
The question here is not cost, but availability. The dealers do not stock it. Once they flew it in disguised as spare parts and did not get caught either by the airline or by customs.
(customs would have required analysis, IR scans, certifications by an agency that charges $200, and then 40% duty on top of all that.
The only dealer that imports oil is the Chevrolet/Suzuki one, and they are the Shell distributor for the country with Argentine Shell products.
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#1122204 - 04/04/08 07:16 PM Re: GM Auto-trac II fluid [Re: widman]
Whitewolf Offline


Registered: 10/05/06
Posts: 2185
Loc: MI, USA
What the Critic said is correct, there is only one approved product so if you can't get it that's a problem. It is, as others have said, a high FM DEXRON-III type product. Why not contact GM SPO and see if they have encountered this issue before.
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#1122208 - 04/04/08 07:22 PM Re: GM Auto-trac II fluid [Re: Whitewolf]
The Critic Offline


Registered: 08/30/04
Posts: 18287
Loc: Walnut Creek, CA
If you cannot get the correct fluid, it's better to leave the factory fill in there than to change it out with some witches' blend.

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