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Transmission Fluid Manual 6speed Best

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Old 10-25-2006, 09:29 AM   #21
hhntr111
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Can you use Mobil 1 ATF in a MN6 tranny?
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Old 10-25-2006, 12:40 PM   #22
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Quote:
Originally Posted by hhntr111
Can you use Mobil 1 ATF in a MN6 tranny?
Yes.
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Old 10-25-2006, 02:05 PM   #23
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Quote:
Originally Posted by chiefDave
So how do you like fresh Mobil 1 compared to RP? My jump to RP gave me a huge increase in smoothness IMO. My old oil was Mobil1 but had some hard miles on it. I would like ot hear your experiances and opinions please
Thanks!!!
Dave
Well for me to buy the RP I have to drive to a store about 15 miles away, where the local Pep Boys has the Mobil 1. I think the Royal Purple is better it seems to shift smoother particularly since its getting colder out. Probably gonna go with Redline next.
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Old 10-25-2006, 02:31 PM   #24
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Amsoil here. No problems so far!
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Old 10-25-2006, 02:49 PM   #25
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Quote:
Originally Posted by ericdwong
Well for me to buy the RP I have to drive to a store about 15 miles away, where the local Pep Boys has the Mobil 1. I think the Royal Purple is better it seems to shift smoother particularly since its getting colder out. Probably gonna go with Redline next.
Thanks for the response man! Funny there is a Pepe Boys 1/4 mile from my house too (thats one reason I moved in there) and they have RP but no syncro mesh I'm with yuo and are going to try redline soon. I do the clutch fluid before each trip to the track, and like to do the oil every other month, and I have not done the trany since Aug??? Thanks!!!
Dave
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Old 10-25-2006, 07:34 PM   #26
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Quote:
Originally Posted by Dan_the_C5_Man
I've completed a fair amount of research on this as well, and my determination is "if you have paper blocking rings and you are running Redline D4 ATF (or ANY synthetic ATF for that matter), the "damage" is done, might as well go for the MTL with superior gear protection (especially for the track).
So what year Vettes have trannys with paper blocking rings? I keep hearing this stuff, but nobody has a definite answer on which cars have them.

I found this on the web, so at least it looks like all Z06s have carbon blocker rings.

M12 6-Speed Manual
"Synchronizers -- Carbon blocker rings have been installed on all manual transmission forward gears to provide for smoother shifts and additional robustness."


Hummm ... what about reverse, it's not a "forward gear".

Last edited by ZeeOSix; 10-25-2006 at 07:40 PM.
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Old 10-30-2006, 01:56 PM   #27
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http://forums.corvetteforum.com/show....php?t=1536152

this helps answer some of the questions about what oil can be used in the early c5's (97-99) that may potentially have paper blocking rings.

i've not confirmed if they are paper or graphite.. I assume they are paper (worst case senerio)
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Old 10-30-2006, 03:18 PM   #28
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I've run M1 in my '94 Z-28 (similar T56 internals) and my '00 FRC. 188K miles on the Z28, 146K miles on the FRC.

Best thing about the M1 is it's easy to get.

Have a good one,
Mike
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Old 01-03-2007, 11:00 AM   #29
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Bump just so those who haven't seen this yet.
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Old 01-03-2007, 11:50 AM   #30
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Changed from Mobil 1 ATF to Royal Purple Synchromesh. Shifts smoother so far.
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Old 01-04-2007, 10:21 AM   #31
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BTW guys its royal purple synchromax, lol, but you can run this stuff in the mn6 even though its not ATF fluid??
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Old 01-04-2007, 10:31 AM   #32
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Yes, you can run syncromax in an MN6 (which it was designed for) and it's ok in all years including those that "might" have paperblockers.
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Old 01-04-2007, 10:38 AM   #33
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Quote:
Originally Posted by N0TDADYS_98 View Post
Yes, you can run syncromax in an MN6 (which it was designed for) and it's ok in all years including those that "might" have paperblockers.
Good deal, im getting rid of the royal purple MAX AFX today (its syn.), I have hard shifts in the morning with it but they go away after 30 mins of driving so ill see if that stuff does any better
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Old 01-04-2007, 11:06 AM   #34
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GM Synchromesh here..
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Old 01-06-2007, 03:27 AM   #35
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I have tried Mobil 1 and Dexron VI in mine. I am now using Royal Purple Synchromax and I like it the best of all I've tried. Shifting is real smooth, especially going into 6th and also when downshifting into any gear it just slides right into gear.
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Old 01-06-2007, 03:46 AM   #36
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Redline MTL working fantastic so far, slightly notchy during the first 3 or 4 miles (I don't think any formulation would completely cure this), much smother than with the D4 ATF after that.
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Old 01-07-2007, 01:16 PM   #37
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Quote:
Originally Posted by 2KFRC5 View Post
Can Dexron VI be used in the manuals, or is it only for the autos?
The Dexron VI spec is currently only for the autos, but for those looking for an aftermarket alternative to the new GM fluid, the AMSOIL ATF was recently reformulated to meet the new Dexron VI specification, but is backwards compatible and still meets the Dexron III specification. Since the AMSOIL distribution centers still have some old formulations on the shelfs, be sure to order batch #10189 or higher to get the new version.
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Old 01-07-2007, 05:18 PM   #38
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Quote:
Originally Posted by Subdriver View Post
The Dexron VI spec is currently only for the autos, but for those looking for an aftermarket alternative to the new GM fluid, the AMSOIL ATF was recently reformulated to meet the new Dexron VI specification, but is backwards compatible and still meets the Dexron III specification. Since the AMSOIL distribution centers still have some old formulations on the shelfs, be sure to order batch #10189 or higher to get the new version.

This states that Dexron VI is also backward compatible for all earlier applications.

http://www.gm.com/automotive/gmpower...ll_Release.doc

Excerpt:
All DEXRON®-III licences[sic] expire at the end of 2006 and will not be renewed. Beyond that date GM will only support the use of DEXRON®-VI fluids for use in Hydra-Matic transmissions. Fluids sold in the market after that date bearing claims such as “suitable for use in DEXRON®-III applications” or similar wording should be avoided. DEXRON-VI licenced[sic] fluids are fully backward compatible and can be used in all applications covered by earlier GM ATF specifications.
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Old 01-07-2007, 09:15 PM   #39
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Redline D4. Will feel like a different trans.
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Old 01-08-2007, 02:15 AM   #40
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Quote:
Originally Posted by vettenuts View Post
I voted for Amsoil because that is what I am now using, not because I have any information to indicate it is the best. I am intrigued by the Redline MTL, but haven't got the nerve to try it.
How do you like it vs. stock?
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