When it comes to oils/lubes/fluids I am a firm believer that you ONLY use what meets the manufacturer spec.
When a manufacturer (like ZF), designs an assembly (like an automatic trans), they provide a list of all materials (metals, plastics, rubbers) that will be used in the building of the assembly), to a lubrication provider (Castrol,Mobile 1,LubroMoly,Esso,Shell,Febi,ect.). This is done because ALL lubrication base and additive products have certain materials that they are incompatable with (read, melt certain plastics, dry out certain rubber compounds, soften certain gear band friction materials). Info on surface area of bearings and clutch/drum assemblies is also given to the lube provider because, as friction area decreases (like when a manufacturer adds a 6th gear to a 5 speed box without increasing the internal size),the required lubricity level of the fluid increases.
When it comes to lubricants, some people think that the newest, latest, bestest fluid is better for THEIR vehicle while just the opposite is true. Put a 6sd autobox fluid in a 5spd box that has greater drum/band surface area and you will have excessive slippage and possibly material degradition!

FWIW. If you go to an indy shop and inquire about what type of fluid they use, and hear a response like "we put this new/latest, super-galacticy, slipperer then snake snot fluid in all the high-end cars that come thru here" type line, get in your car and get away from there, fast!!!!!!