Just about to fire up my '88 RAM for the first time. The engine was yanked in 2016, and I've spent the last few months putting it back together. Transmission was drained when the engine was removed.

Can't find and have been told Dexron III is obsolete. I was pointed to this Mobil brand stuff called D/M and on the back, it claims to be the modern equivalent of Dexron/Mercon III and is compatible with vehicles designed for that blend.

Anybody else run it? Good to go? Thoughts?

Bloody Mary, Full of Vodka, Blessed art thou among cocktails....