transmission fluid?

Recycled french fries oil here, and now every time I drive by McDonalds I think I might have a trans problem.
Higher end chain transmisssion shops use Dexron 3 in everything unless the customers ask's for and supply's what they want in it.
Royal Purple is one that is most commonly requested for hotrods but it's probably just Dexron 3 with blue dye in it anyway.

Can't go wrong with Dexron