Transmission Fluid
Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,910
From: Missouri City, TX
I am not an RP expert but I believe that is correct for the manual trannies. Be sure it is for DEXRON 3 applications. Do not use DEXRON 6 in a manual tranny under any circumstance. DEX 6 is only suitable for auto A4 & A6.
Drifting
Joined: Apr 2006
Posts: 1,276
Likes: 5
From: Ambler Pa.
I am using the sycromax in my 06 manual trans. You will need to raise the back end of your car, ramps work well. You will need a pump to refill the trans after draining. There are to plugs , lower plug is the drain, upper plug is the fill. I forget the capacity, its either 2 1/2 qts. , or 3 1/2 qts. [ sorry its been a while ]. There are pictures of this process on the forum, check the stickies, and re check or re word your search, you may find it that way. You can get an inexpensive hand pump at most auto supplies, I recommend the one that screws on to the quart bottle.
Last edited by REVAK; Jun 22, 2011 at 12:20 PM. Reason: deletions
Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,910
From: Missouri City, TX
I am using the sycromax in my 06 manual trans. You will need to raise the back end of your car, ramps work well. You will need a pump to refill the trans after draining. There are to plugs , lower plug is the drain, upper plug is the fill. I forget the capacity, its either 2 1/2 qts. , or 3 1/2 qts. [ sorry its been a while ]. There are pictures of this process on the forum, check the stickies, and re check or re word your search, you may find it that way. You can get an inexpensive hand pump at most auto supplies, I recommend the one that screws on to the quart bottle.
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,910
From: Missouri City, TX
I think you would have to go through a complete overhaul disassembly of the transmission to ever be able to fill it at 4.0 or 4.1 qts. I always level up the car the best I can when changing tranny & diffs. I have done maintenance drain and refills for two C5 Z06 trannys and one C6 Z06 tranny and never came close to using 4 qts.
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Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,910
From: Missouri City, TX
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
Shortly after I bought my 09 Z06, I decided something had to be done about the 1st & 2nd gear "nibbles" and sometime "crunches". I purchased the RP fluid and installed it and it made the shifting worse. I drained the RP(and cried,as the stuff is very expensive) and replaced with Mobil1 DexIII ATF. The Mobil1 restore the shifting to about what it was before the RP fill. Maybe a little better shifting but really difficult to quantify. Now at 15,000 miles, the shifting is better, but not by much. I suspect that the improvement is because the parts have worn in, not because the fluid works any better.
My conclusion is that changing the fluid is not going to solve the problem, maybe mask it a little. GM did make a change in the 2011 transmissions by going to carbon coated synchros to solve the problem. If GM could have solved the problem by changing the transmission fluid formulation they would have.
My conclusion is that changing the fluid is not going to solve the problem, maybe mask it a little. GM did make a change in the 2011 transmissions by going to carbon coated synchros to solve the problem. If GM could have solved the problem by changing the transmission fluid formulation they would have.
Le Mans Master
Joined: Dec 2003
Posts: 5,047
Likes: 252
From: San Diego
Shortly after I bought my 09 Z06, I decided something had to be done about the 1st & 2nd gear "nibbles" and sometime "crunches". I purchased the RP fluid and installed it and it made the shifting worse. I drained the RP(and cried,as the stuff is very expensive) and replaced with Mobil1 DexIII ATF. The Mobil1 restore the shifting to about what it was before the RP fill. Maybe a little better shifting but really difficult to quantify. Now at 15,000 miles, the shifting is better, but not by much. I suspect that the improvement is because the parts have worn in, not because the fluid works any better.
My conclusion is that changing the fluid is not going to solve the problem, maybe mask it a little. GM did make a change in the 2011 transmissions by going to carbon coated synchros to solve the problem. If GM could have solved the problem by changing the transmission fluid formulation they would have.
My conclusion is that changing the fluid is not going to solve the problem, maybe mask it a little. GM did make a change in the 2011 transmissions by going to carbon coated synchros to solve the problem. If GM could have solved the problem by changing the transmission fluid formulation they would have.
Safety Car
Joined: Jul 2006
Posts: 4,724
Likes: 7
From: Southern California
This is a DIY thread for the trans fluid change - Z06 - http://forums.corvetteforum.com/c6-z...-specific.html
I just changed the trans (T56) and diff fluids in my recently purchased 2006 Z06 with Royal Purple. It shifts much smoother and eliminiated the clunking noises from the differential.
I just changed the trans (T56) and diff fluids in my recently purchased 2006 Z06 with Royal Purple. It shifts much smoother and eliminiated the clunking noises from the differential.
Intermediate
Joined: May 2011
Posts: 32
Likes: 0
Went to dealer and that's what they gave me was dex 6 for my 2007 manual trans. I told them it said dex 3 on trans, dealer said that's all they use. Should I change it? What will happen?
Drifting
Joined: Dec 2010
Posts: 1,939
Likes: 2
From: Danielsville Georgia
www.amsoil.com Super quality,Big Brown delivers. Look up/Application guide. Become a preferred customer for a decent price break.
Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,910
From: Missouri City, TX
Supporting Vendor
Joined: Apr 2011
Posts: 3,332
Likes: 195
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,910
From: Missouri City, TX
www.amsoil.com Super quality,Big Brown delivers. Look up/Application guide. Become a preferred customer for a decent price break.
Safety Car
Joined: Nov 2007
Posts: 4,537
Likes: 1,403
From: Bethesda MD
mine's like butter when warm, but notchy when cold. I used redline and that helped decrease the temp needed to not be notchy. Even with the Redline, on a 30* morning it takes a couple miles to feel right.
