97 M6 fluid debate
Thread Starter
Burning Brakes
Joined: Aug 2008
Posts: 1,058
Likes: 91
From: Indiana
97 M6 fluid debate
Ive ready countless posts about the best fluid to put in a 97 M6 with paper blockers. Im leaning towards royal purple. You guys have me worried something could go wrong with certain brands of fluid. What is everyone using if you have a borg warner trans?
Tech Contributor
Joined: Jan 2007
Posts: 19,341
Likes: 1,123
From: Dyer, IN
Unless you are pushing your car to the limit on a regular basis, or participating in auto-x events, Dextron is a no brainer.
Pro
Joined: Aug 2007
Posts: 619
Likes: 1
From: ATLANTA GA
Put regular dexron fluid back in. All that synchro mesh stuff is snake oil and a bandaid at that. I have a fully built trans with the works and I use the regular cheap dexron 3 fluid. I went through allot with the rebuilding of my trans, For what its worth there is nothing different about borg warner or tremec transmisisons. I have a borg warner. The only thing of discussion is the older style blocker rings When they do go out, and they will eventually You can get carbon fiber blockers like I have, They dont even sell paper blocker rings in the rebuild kits anymore..
Thread Starter
Burning Brakes
Joined: Aug 2008
Posts: 1,058
Likes: 91
From: Indiana
whats the prefered brand of dexron? GM? Ive just seen all the debates about what works and what doesnt with the paper blockers. It blows my mind how many threads Ive read about this subject.
Tech Contributor
Joined: Jan 2007
Posts: 19,341
Likes: 1,123
From: Dyer, IN
I'm out.....good luck...
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Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
I switched to Mobil 1 synthetic at 50,000 miles in my 1998. At about 100,000 miles my MN6 started grinding going into 6th gear. I changed to Amsoil ATD and it stopped grinding imediately ! Now at 118,000 miles, all is still fine.
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
My 98 started having GRINDING issues going into 3rd at 55K miles so,,,,I changed my fluid to Mobil 1 synthetic. MAN
the difference in shifting was remarkable!!!!!! I had the improved fluid in the car for 20k+ Miles with ZERO issues. Knowing what I know now,, I would use AMS OIL. It is suppose to be compatible with the early C5 tyranny's.
Use the recommended ATF fluid or AMS OIL.
BC
the difference in shifting was remarkable!!!!!! I had the improved fluid in the car for 20k+ Miles with ZERO issues. Knowing what I know now,, I would use AMS OIL. It is suppose to be compatible with the early C5 tyranny's. Use the recommended ATF fluid or AMS OIL.
BC
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
Give me synthetic or give me........
I'm a big believer and I've found that synthetics are far superior than 'mother nature's' dino fluids. The use of synthetics ensures a higher tolerance to oxidation caused by pressure and heat which in turn robs lubrification.
Also a big supporter of Red Line oil products for several reasons since their inception. But I digress; We use Amsoil synthetic ATF in the wife's 2000 FRC ( with 25,000 miles). She comments on how much smoother the shifting is over the Dexron3. In my 2001 Z06 I use Red Line's D4 synthetic ATF (27,000 miles) with satisfaction.
Also a big supporter of Red Line oil products for several reasons since their inception. But I digress; We use Amsoil synthetic ATF in the wife's 2000 FRC ( with 25,000 miles). She comments on how much smoother the shifting is over the Dexron3. In my 2001 Z06 I use Red Line's D4 synthetic ATF (27,000 miles) with satisfaction.
Last edited by dieseldave56; Nov 17, 2008 at 03:58 AM.
Tech Contributor
Joined: Jan 2007
Posts: 19,341
Likes: 1,123
From: Dyer, IN
Since this thread is discussing transmission fluid, how does the rate of oxidation of transmission fluid compare with engine oil? Feel free to be as technical as necessary...
Thanks...
Drifting
Joined: Jun 2008
Posts: 1,333
Likes: 32
From: cruising between USA and Canada... SAVE THE WAVE!
Just the nature of combustion, and the byproducts of combustion(coupled with increased pressure in the engine based on demand), accelerate oxidation.
Since this thread is discussing transmission fluid, how does the rate of oxidation of transmission fluid compare with engine oil? Feel free to be as technical as necessary...
Thanks...
Since this thread is discussing transmission fluid, how does the rate of oxidation of transmission fluid compare with engine oil? Feel free to be as technical as necessary...
Thanks...
Burning Brakes
Joined: Oct 2004
Posts: 931
Likes: 35
From: Rowlett, Texas
Clear, we had some fun with this a week or two ago, when I drained GM syncromesh and put in Pennzoil Dexron III, and the shifting improved mega-much.
Do a quick search for threads by "The Wrench" and read the thread; Lucky13 commented a couple of times also.
Mine is really shifting great on the Pennzoil, and after our discussion, I decided to leave it just as is. Maybe M1 is fine, but I decided to not lose sleep over it, and nix'd it from my list. I also discovered that Amsoil and Redline recommend their ATF, but RP recommends their syncromesh type????
So, it seems, from my small investigstion, that if regular old Dexron III is not preferred, the hi-end lines to consider are Redline and Amsoil DexronIII-compatible ATF.
Just my opinion, based on a lot of reading herein.
DG
Do a quick search for threads by "The Wrench" and read the thread; Lucky13 commented a couple of times also.
Mine is really shifting great on the Pennzoil, and after our discussion, I decided to leave it just as is. Maybe M1 is fine, but I decided to not lose sleep over it, and nix'd it from my list. I also discovered that Amsoil and Redline recommend their ATF, but RP recommends their syncromesh type????
So, it seems, from my small investigstion, that if regular old Dexron III is not preferred, the hi-end lines to consider are Redline and Amsoil DexronIII-compatible ATF.
Just my opinion, based on a lot of reading herein.
DG
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
or in other words the lubriciousness of the fluid used.