Have you looked into Amsoil trans fluid? I've had it in all my cars and trucks and it's great stuff.

https://www.amsoil.com/storefront/atf.aspx

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Professional greasecar installer
Austin TX


98 Jetta TDI with grease car kit + veg-therm (totaled)
87 MB 300SDL running on B99 / greasecar kit + 30 fphe
www.austingreaseguys.com