Outer Limits 4x4 Board

hey all. im a nissan man but im doin a svc on my mates wrangler renegade, just wondering what oils to run in diffs gear box transfer and engine. its a 4L petrol manual. any help would be great.

I put sensibly priced penrite in my engine.. I think the transfer runs automatic trans fluid .. and the diff's I've used standard diff gear oil.

C