[AZ_1LE]

Originally Posted by Eldi Z

Interesting that you state this.
GM and Tremec advise to use Dexron 3 spec. ATF for our TR-6060 box.
BtW, the Vette's 2017 & up GS 7-Speed is also Tremec. Namely TR-6070.

However, good results were found with the following fluisd as well.
RP being the better "known" brand, while BG's Synchroshift2 is less known, but proved excellent results as well (Read test article - link below):

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Royal Purple Synchromax

http://www.royalpurpleconsumer.com/p...mission-fluid/

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BG SyncroShift 2

https://www.bgprod.com/catalog/drive...ncro-shift-ii/

Recent test

https://motoiq.com/tested-bg-syncro-shift-ii-gear-oil/

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I have been running Amsoil since February and am very glad I did. Transmission feels 10x better than it did before, plus the fluid offers better protection during track days.