[Z06] Trans fluid
Melting Slicks
Joined: May 2013
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From: New Jersey
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St. Jude Donor '25
Amsoil Signature ATF or Amsoil TorqueDrive is what I prefer.
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Nice find on the fluid.
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Joined: May 2012
Posts: 52
Likes: 3
From: Austin TX
I too initially sourced Amsoil's Signature ATF for the 1st trans fluid change in my 01 Z06. FWIW, I ended up using the recommended AC Delco 10-4033 after reading this from a reputable drivetrain & transmission shop near me <Texas Drivetrain Performance>:
Source: https://www.txdrivetrain.com/fluid-t...56-tr6060-faq/
Why not use synthetic fluid? Isn’t it better?
We’ve determined that synthetic ATF has additives which allow the synchro rings to slip a small amount, causing excessive wear. These additives are made to benefit an automatic transmission which has fluid under high pressure, unlike a manual transmission which isn’t pressurized. We’ve found that the life of the synchro rings are drastically shortened when using synthetic fluid.Source: https://www.txdrivetrain.com/fluid-t...56-tr6060-faq/
Melting Slicks
Joined: Jun 2013
Posts: 3,473
Likes: 691
From: West Virginia
Not surprised. I ran Mobil1 Dex III synthetic for a while (dealer recommendation at the time). Later went back to Dex-Merc non-syn (Valvoline) and found that I no longer had to do "slow" shifts to avoid synchros grinding. Cheap too, about $18/gallon at Wally's.
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Safety Car
Joined: Dec 2015
Posts: 3,947
Likes: 1,407
From: Canada
I too initially sourced Amsoil's Signature ATF for the 1st trans fluid change in my 01 Z06. FWIW, I ended up using the recommended AC Delco 10-4033 after reading this from a reputable drivetrain & transmission shop near me <Texas Drivetrain Performance>:
Source: https://www.txdrivetrain.com/fluid-t...56-tr6060-faq/
Why not use synthetic fluid? Isn’t it better?
We’ve determined that synthetic ATF has additives which allow the synchro rings to slip a small amount, causing excessive wear. These additives are made to benefit an automatic transmission which has fluid under high pressure, unlike a manual transmission which isn’t pressurized. We’ve found that the life of the synchro rings are drastically shortened when using synthetic fluid.Source: https://www.txdrivetrain.com/fluid-t...56-tr6060-faq/
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