transfer case fluid Need help!!!!

[dougiefresh7988]

i got a 2005 g35x sedan and i recently changed the rear diff. fluid but used a higher performance oil and i would like to do the same for my transfer case
but the manual dosent give me any info except use genuine nissan matic d atf . so what i am asking is what weight oil can i use for example i used royal purple api gl-5, viscosity sae 75w-90 in the rear diff. ...


any reccomendations for my transfer case??