R32 GTR Complete fluid change. Advice?

[ishhhh12]

G'day guys,

Just purchased a 32GTR, it has some basic oil restriction mods and other power mods. It's on 143km's.
I'm looking to refresh all the fluids before I drop it in for a tune at the end of the month. 
There's a lot of info online about this topic but a lot of it is historical(up to 15 years old). There aren't any recent posts(that i can find) that address the topic.

My research has lead me to pick these fluids :

Gearbox oil: Redline Heavy Shockproof Gear oil  - 4.5 L

Front diff : Redline Lightweight Shockproof Gear Oil - 1L

Rear diff: Not sure??

Brake fluid: Nulon xtreme performance gear oil. dot 4

Power steering fluid : Castrol DEX III Automatic Transmission Fluid 1 Litre

Transfer case : Nissan Matic D transmission fluid

Engine oil: Not sure??

[E33]

if you got gearbox selector issues - shock proof aka -  smurfs blood 

Down load the penrite app and use the recommended oils 

Good old australian made stuff 

[GTSBoy]

Don't put Shockproof in anything unless you need it because of crunchy selectors. For f**k's sake, don't put it in the front diff. Use diff oils in diffs. A good LSD oil for the rear, a normal (non-LSD) diff oil for the front, unless it has had an LSD centre put in it.

[ishhhh12]

Thanks for the replies guys! think i figured it out.

 

On 04/11/2020 at 9:35 PM, E33 said:

if you got gearbox selector issues - shock proof aka -  smurfs blood 

Down load the penrite app and use the recommended oils 

Good old australian made stuff 

I'm a bit concerned that they recommend the same oil for front and rear diff when a lot of people online say don't use the same oil(due to lsd and non lsd)

On 05/11/2020 at 11:29 AM, GTSBoy said:

Don't put Shockproof in anything unless you need it because of crunchy selectors. For f**k's sake, don't put it in the front diff.

Decided to shockproof heavy the gearbox. But not the diff
 

[BK]

There is no reason to use shockproof in a healthy gearbox ever. Absolutely none. A 75w - 85 GL-4 provides the smoothest shifts with the brass synchros. Even GL-5 at 75w-90 is noticeably worse in the upper rev range shifting. Shockproof is gummy crap that sticks to everything and if you've ever pulled a box down you'd never recommend it. It masks synchronisation wear and is about the same result as using a normal oil and adding a shift additive like that Nulon or Penrite smooth shift crap - the oil becomes a paste.

LSD or not the LSD oil is fine for the open fron diff, it's just not required, but the best synthetic heavier weight oils are mostly LSD oils by design though. As I've said repeatedly in the paat the stock front diff oil weight is retarded - way too light, so use an 80 or 90 weight oil in front diff at your own risk. 75w-140 in both front and rear if you want to retain healthy crown wheel and pinions on you GTR diffs is the go.