I got no clue. I don't have access to the part system numbers. Maybe try calling/emailing a parts dept at a dealer?
GIS popped up this -
http://jaytec-lubricants.com/index.p...&cPath=1_10_39
and this
Manual Transmission Oil: 2.3 qt; “MG Gear Oil special II”; API GL-3 and SAE 75W-90