Tranny fluid
Melting Slicks
Joined: Feb 2006
Posts: 2,938
Likes: 62
From: Columbia SC
I am getting ready this week to swap out my tranny fluid in my 00 vert 6 sp. Picked up 4 qts of Royal Purple Syncromax. Will let you know the difference once I change it and I know I will notice a difference. 
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
Amsoil ATF or ATD in the tranny, your transmission has paper blocker rings, so not just any synthetic fluid will do.
Whatever diff fluid you use, check if you have to add friction modifier.
Whatever diff fluid you use, check if you have to add friction modifier.
Last edited by Oldvetter; Apr 20, 2008 at 11:33 PM.
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Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Tranny (Dexron III fluids):
AMSOIL ATF (stock code ATFQT)
AMSOIL Torque-Drive Synthetic Transmission Fluid (stock code ATD)
(Oldvetter uses the ATD in his car with good results, I have the ATF in my 02 Z06 and 06 CTS-V but think I'll try the ATD next time around as it has a slightly higher viscosity than the fairly recently reformulated ATF).
Diff: AMSOIL Severe Gear Extreme Pressure Synthetic 75w90 (stock code SVGQT)
(Note that this fluid has friction modifier already in it and extra is not normally needed)
(I use this in both my 02 Z06 track car and 06 CTS-V daily driver)
AMSOIL ATF (stock code ATFQT)
AMSOIL Torque-Drive Synthetic Transmission Fluid (stock code ATD)
(Oldvetter uses the ATD in his car with good results, I have the ATF in my 02 Z06 and 06 CTS-V but think I'll try the ATD next time around as it has a slightly higher viscosity than the fairly recently reformulated ATF).
Diff: AMSOIL Severe Gear Extreme Pressure Synthetic 75w90 (stock code SVGQT)
(Note that this fluid has friction modifier already in it and extra is not normally needed)
(I use this in both my 02 Z06 track car and 06 CTS-V daily driver)
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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%)
Thread Starter
Racer
Joined: Mar 2007
Posts: 408
Likes: 0
From: Sarnia ON
And for the differential Im still not sure.
Drifting
Joined: Apr 2005
Posts: 1,753
Likes: 29
From: McKinney TX
I am about to change my A4 tranny fluid and filter. I am not getting it flushed, just dropping the pan, will it be bad to mix old GM fluids with new Mobil 1 dexron III fluids?
When I was at the dealership buying the tranny filter kit, the guy there told me I should use Dexron VI fluids .. that true?
When I was at the dealership buying the tranny filter kit, the guy there told me I should use Dexron VI fluids .. that true?
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Le Mans Master
Joined: Sep 2007
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From: Belleville Il