[6spdhyperblue]

Originally Posted by Ian @ Weseloh Chevrolet

Amsoil. Made the switch at 1500 miles. On OEM fluid, it would get HOT after about 12 passes on a strip. Now I can make 15 hotlaps and it never gets close to redline.

is it ATF? what about dextron 3?

[Ian SS]

Originally Posted by Nicul15

is it ATF? what about dextron 3?

I used Amsoil ATF. Not sure about dextron.

[MuhThugga]

Use Dexron III fluid for the Tremec transmissions. The Dexron VI stuff has been found to not play so nicely with the blocker rings. Amsoil Signature Series ATF (NOT Fuel Efficient ATF) or Amsoil Torque Drive are good choices for the Tremec. I've been using Amsoil in my GTO's T56 for ten years now, and that trans is the only thing in the driveline that is still factory.

[The Specialist]

Seems strange running something labeled " ATF " in a manual trans.
Does anyone know what it is? The GM trans lube Part # ending 800?
Is it a standard 80\90W trans - rear end, differential type gear lube?

[protovack]

Um, read your manual. It says nothing about ATF or Dexron for the TR6060.

It only says (copy pasted from the manual)
"Manual Transmission Fluid (GM Part No. 88861800)"

Now, the Tremec 3160 in the turbo 4 and V6 does take ATF. But....

Did I miss something?

[oOKhanhOo]

Originally Posted by protovack

Um, read your manual. It says nothing about ATF or Dexron for the TR6060.

It only says (copy pasted from the manual)
"Manual Transmission Fluid (GM Part No. 88861800)"

Now, the Tremec 3160 in the turbo 4 and V6 does take ATF. But....

Did I miss something?

http://www.tremec.com/anexos/TREMEC_TR-6060_1017.pdf

[The Specialist]

I e-mailed Tremec.
It's a go with the Dexron III fluids such as the Mobil1 Synthetic ATF Dexron III H that I asked if was compatible.

""
Subject: RE: TR-6060 Transmission question?

Hello and thank you for contacting Tremec.

I would say it’s the cold and these transmissions need to be warmed up.
We recommend that customers always follow the owners manual spec for fluid, but we have validated Mobil 1 Synthetic ATF and it is acceptable for the TR6060.


Thanks,

[RWT]

Originally Posted by protovack

Um, read your manual. It says nothing about ATF or Dexron for the TR6060.

It only says (copy pasted from the manual)
"Manual Transmission Fluid (GM Part No. 88861800)"

Now, the Tremec 3160 in the turbo 4 and V6 does take ATF. But....

Did I miss something?

The only thing you missed (or didn't know) is that the "Manual Transmission Fluid (GM Part No. 88861800)" is rebranded Dexron III.

The GM Fluid Specification and licensing for Dexron III expired in March, 2011. However, the Tremec 6060 requires Dexron III so GM rebranded it as "Manual Transmission Fluid (GM Part No. 88861800)".

The Tremec spec sheet in an earlier post shows Dexron III as the fluid for the 6060. However, GM shows the "Manual Transmission Fluid (GM Part No. 88861800)" because GM doesn't license, endorse or regulate Dexron III anymore (although AC Delco still makes it without the license number on it). I suspect the GM Manual Trans Fluid is made by AC Delco.

GM stopped licensing Dexron III because it was superseded by Dexron VI for automatic transmissions (primary use). However, the Dexron VI is not compatible with the Tremec 6060 so the "Manual Transmission Fluid (GM Part No. 88861800)" was born (or reborn).

If GM still licensed Dexron III, the Camaro manual would probably say Dexron III (just like the Tremec spec sheet).

The Tremec 6060 used in the V8 Camaros use Dexron III (or the GM stuff) and the 3160 used in the V6 and Turbo 4 uses Dexron VI (or Dexron II).

BTW, I have no expertise in this area and could have just made this up.

[JCunningham]

Originally Posted by jimmypop13

I'd be careful about changing to synthetic in the auto. Many of the LSx message boards are full of people complaining about auto transmission slipping and acting odd when changing from the factory fluid.

in the auto every 8 speed meeds to be changed to Mobil 1 lv hp https://www.summitracing.com/parts/m...gaAtbaEALw_wcB
the wrong fluid was used up until 2019
for the manual transmission Amsoil torque drive or Royal Purple 01512 Synchromax seam to be the favorite for the TR6060