Recommendations for Trans Fluid and Diff fluid replacement???
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 866
Likes: 1
From: Elmhurst IL
Recommendations for Trans Fluid and Diff fluid replacement???
I am looking at recommendation for changing the fluids out in my April 2006 built Z51 6-speed trans and in the diff. There is a lot of proucts out there. Any shared experiences would be great. Thanks!
Instructor
Joined: Aug 2006
Posts: 129
Likes: 0
For the manual tranny, I used Royal Purple Synchromax to smooth out the rough syncho action when the fluid was cold. This stuff works great! Plus thanks to those on this forum for the advise!
For the diff, I just used the GM recommended fluid & additive. Works great. No noises & no chatter.
For the diff, I just used the GM recommended fluid & additive. Works great. No noises & no chatter.
Le Mans Master
Joined: Dec 2004
Posts: 5,759
Likes: 539
From: AZ
St. Jude Donor '06-'08-'10-'11-'12-'13 '14-'15-'16-'17-'18-'19
I use Amsoil products and have been very pleased with their products. I have their Svere Gear 75W-90 and the GM limited slip fluid and it cleared up the chatter. I am going to change my A4 to Amsoil ATF.
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 866
Likes: 1
From: Elmhurst IL
Pro
Joined: Sep 1999
Posts: 518
Likes: 0
From: South Florida
I went with the royal purple max gear oil 75w90 for the differential, this oil comes with an additive so you just pour it straight, chatter is now gone, one thing I noticed was that approx 2 1/8- 2 1/4 qts drained out (although the capacity specs say 2qts). I tried to put the same amount that drained out, back in by raising the rear end when filling.
Pro
Joined: Sep 1999
Posts: 518
Likes: 0
From: South Florida
I went with the royal purple max gear oil 75w90 for the differential, this oil comes with an additive so you just pour it straight, chatter is now gone, one thing I noticed was that approx 2 1/8- 2 1/4 qts drained out (although the capacity specs say 2qts). I tried to put the same amount that drained out, back in by raising the rear end when filling.
Pro
Joined: Sep 1999
Posts: 518
Likes: 0
From: South Florida
I went with the royal purple max gear oil 75w90 for the differential, this oil comes with an additive so you just pour it straight, chatter is now gone, one thing I noticed was that approx 2 1/8- 2 1/4 qts drained out (although the capacity specs say 2qts). I tried to put the same amount that drained out, back in by raising the rear end when filling.
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Melting Slicks
Joined: Oct 2000
Posts: 2,156
Likes: 3
From: La Mesa CA
I went with the royal purple max gear oil 75w90 for the differential, this oil comes with an additive so you just pour it straight, chatter is now gone, one thing I noticed was that approx 2 1/8- 2 1/4 qts drained out (although the capacity specs say 2qts). I tried to put the same amount that drained out, back in by raising the rear end when filling.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
I've been running those fluids for three seasons now in my 02 Z06 without any problems.
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C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
