Which oils r recommended for 4x4 in infiniti qx56 2007 ?

[Saad]

Hi.. I recently bought infiniti qx56 2007, the car is US specs.
The owner didn't had service book with him so i decided to changed all the lubricants in the car.
I have recently had changed the engine oil, gear/transmission oil, differential oils, radiator coolant.
but the mechanic asked me to confirm which oil to put for 4x4 case.

Kindly give me your thoughts.

Thanks

[marctronixx]

why not just call the local dealer and ask directly?