View Poll Results: Which fluid is best for a M12 T56?
Redline D4 ATF
53
8.85%
Royal Purple Syncromax
179
29.88%
GM Syncromesh
154
25.71%
OEM Dexron III ATF
213
35.56%
Voters: 599. You may not vote on this poll
Which T56 fluid?
TECH Apprentice
Joined: Jul 2006
Posts: 398
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From: Jacksonville, Florida
I use Royal purple syncromax. I would have a hell of a time putting it into first on occasion just wouldnt go in. So i changed the fluid out to this and it goes into gear alot easier. This could have been low fluid so on.. but my tranny has always been a bit noisy 89k on it but never grinded so I believe the fluid is doing its job! I recomend the RP syncromax from my personal experience just because it is working fine for me right now shifts are a bit notchy but i realy dont want to blame the fluid for that, just an older tranny.
Banned
Joined: Dec 2004
Posts: 2,636
Likes: 2
I just bought the OEM Dexron III ATF from GM. It has the same SAE thickness properties as Mobil 1. It also shifted GREAT! even with 75K miles on it before I put in Valvoline which made things a bit notchier. I am going back OEM and think it will be fine. I have heard from numerous sources that RP will eat blocker rings, not b/c it is synthetic, but b/c the add-pack isnt very good for them.
TECH Regular
Joined: Jul 2005
Posts: 479
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Originally Posted by BLKWS.6
I just bought the OEM Dexron III ATF from GM. It has the same SAE thickness properties as Mobil 1. It also shifted GREAT! even with 75K miles on it before I put in Valvoline which made things a bit notchier. I am going back OEM and think it will be fine. I have heard from numerous sources that RP will eat blocker rings, not b/c it is synthetic, but b/c the add-pack isnt very good for them.
Originally Posted by 01pewterbird
Was there any proof to the fluid being the culprit? And what year car/blocker ring material? I just can't see how a company such as RP would have a fluid specifically designed for modern manual transmissions and yet it eats blocker rings. I'd just like to see your "sources". If you have a link or something please post it up.
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Joined: Jul 2005
Posts: 479
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Originally Posted by MeentSS02
Well...Joe and Amber at Six Speeds Inc. don't recommend it anymore. That's enough for me to steer away from it (especially since they built my trans).
Banned
Joined: Dec 2004
Posts: 2,636
Likes: 2
Originally Posted by 01pewterbird
Was there any proof to the fluid being the culprit? And what year car/blocker ring material? I just can't see how a company such as RP would have a fluid specifically designed for modern manual transmissions and yet it eats blocker rings. I'd just like to see your "sources". If you have a link or something please post it up.
TECH Regular
Joined: Jul 2005
Posts: 479
Likes: 0
Originally Posted by BLKWS.6
Any year. No T56 in ANY F-body had anything but paper syncros. I have no idea where the CF after 01' rumor came from.
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Verdad Gallardo TECH Regular
Joined: Jul 2005
Posts: 479
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LOL black WS.6, you once had the same belief as me untill the pros at Six Speeds Inc set it straight for you and the rest of us in this thread.https://ls1tech.com/forums/showthrea...=blocker+rings
Thanks for bringing it to my attention!
Thanks for bringing it to my attention!
Banned
Joined: Dec 2004
Posts: 2,636
Likes: 2
Originally Posted by 01pewterbird
LOL black WS.6, you once had the same belief as me untill the pros at Six Speeds Inc set it straight for you and the rest of us in this thread.https://ls1tech.com/forums/showthrea...=blocker+rings
Thanks for bringing it to my attention!
Thanks for bringing it to my attention!
T-56 just did a viper conversion for me and replaced everything in the tranny except 1st gear...They personally recommended for my tranny 2 qts of syntergyn and 2 qts of mobil 1 atf.....just my 2 cents
Banned
Joined: Mar 2007
Posts: 317
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Originally Posted by coolformula
Did t56 rebuilds put in there .02 cents? I figured they would know pretty well. Also the manf like poorman said.
Thats what I use, along with a bottle of Lucas Trans Fix (to thicken up the fluid, it needs a rebuilt) and its been good.
TECH Regular
Joined: Jul 2005
Posts: 479
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Originally Posted by getusum
T-56 just did a viper conversion for me and replaced everything in the tranny except 1st gear...They personally recommended for my tranny 2 qts of syntergyn and 2 qts of mobil 1 atf.....just my 2 cents
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Joined: Mar 2007
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Originally Posted by bursty
Hey guys, I went and got tons of fluids for my car yesterday (engine, tranny, and rear end) and accidentally got Mercon V instead of Dexron III. Will this work for an 02 T56?
