I had to do the long yards and get from the service manual/book the oil specifications for everything and go hunting with that in mind. Mine is a '09 MB TDCI I try and keep it all to one shop as I don't want to drive around all over the place. If you end up making a list find a place that has it all, which often the usual guys do Stupidcheap/Autobarn/Repco/Auto1. YMMV
I pretty much settled on:
Nulon Long Life Diesel Engine Oil - 5W-30
WSS-M2C913-B (Ford oil spec or better)
Nulon Full Syn. Automatic Transmission - (AWF21)
WSS-M2C924-A
Nulon Red Long Life Concentrated Coolant
WSS-M97B44-D
Penrite - LDAS (steering)
WSS-M2C204-A (Pentosin)
Nulon Xtreme Performance Brake Fluid - Super DOT 4 (M6C55-A closest I could get)
WSS-M6C57-A
So as you can see I can get Nulon for everything except the powersteering fluid. Penrite have everything having said that and I may look into it.
Go have a look at what Penrite and Nulon suggest using their search guide.
http://www.datateck.com.au/Lube/PenriteAus/
http://www.datateck.com.au/lube/NulonAus/default.asp
double check the guides on specs and make a list. I've made a txt file and have it on my phone with all consumables that I need and update as I go. Handy to keep around.
Hope it helps.