Changing fluids

redline light shockproof for the gearbox and diffs. When I get home, I'll check the manual and see how many litres each takes.

thank you let me know howmuch each need !

Amounts of fluids required are the following:

Gearbox: 4.2L (GL4 75W90) -> I mixed some Redline Shockproof in with some Redline 75w90)

Transfer case: 1.5L (GL5 75W90)

Rear Diff: 1.0L (GL5 75W90) -> Nissan actually recommends you add this to your mix: AC Delco Limited Slip Axle Lubricant Additive

Coolant: 6.6L

There are tons of options out there for transmission/transfer case fluids and everyone has their own opinion about performance so I can't say what is "the best" but maybe other can chip in.

gearbox i would use redline mt90 4.5L  u want a gl4 in this one  
rear diff and centre transfer case  i would use motul motylgear 300 2.5L 

this is my current setup

I bought royal purple 75w90 gear oil because motul is hard to come by in vic

Toug tuning in the GTA was selling Red line cock-tale kits for Subarus (did my 2.5 RS) and it's the perfect kit for the GTIR you need an extra bottle of MT 90 to be exact I think.

Also on the AC delco front.. there's an aditive called ACDelco EOS AKA "top oil" witch works wonders on mechanical lifters (such as ours) as it's designed for all that extra push rod hardware found in gm motors