yes use OEM fluids.........!!!! I used royal purple on my car on the first oil change and it didnt do well at all.. since i was using the stock intake and no catch can the royal purple oil didnt burn up to well in the turbo. so i had oil all in the LICP and UICP like a mother. changed back to mobil one oil and didnt have as much oil going through the pipes......just my 2 cents though...

and as far as t case fluid, any syncromesh synthectic 75/90 i think. thats what the techs told me......dont quote me on the t case stuff though i kinda forgot