Diff oil r200

[Jimmy TRYNC]

Hi there guys just wondering what oil is every one is using in there R200 gtr/gtst diffs mechanical not active 

[Jimmy TRYNC]

On 7/20/2018 at 10:41 PM, GTSBoy said:

There's not enough benefit in changing to GTR stuff to warrant the effort & cost.  5 bolters are plenty strong enough.

 

[Jimmy TRYNC]

Yea but gtr is 1.5 way standard the constant  velocity joints are much bigger and the spline that goes in to hubs is much larger 

[KiwiRS4T]

37 minutes ago, Jimmy TRYNC said:

Hi there guys just wondering what oil is every one is using in there R200 gtr/gtst diffs mechanical not active 

No idea what everyone uses but I like Nismo competition gear oil 2189E 75W90 ...  or slightly cheaper but almost (but not quite) the same spec is Motul competition gear oil 75W90 (both oils made by Motul) although other people use cheaper oils presumably with ok results.

[GTSBoy]

11 hours ago, Jimmy TRYNC said:

Yea but gtr is 1.5 way standard the constant  velocity joints are much bigger and the spline that goes in to hubs is much larger 

Let's just say that you need to be making stupid power before the time, effort and cost required to put a GTR diff into a GTSt, just to get a small improvement in strength on those parts becomes worth it.  The 5 bolt stuff is very strong.

You can put a 1.5 way mech centre into the GTSt diff without having to change all that other stuff.  And then, on top of that, the GTR stock mech centre is usually swapped out by people looking for a more capable LSD anyway, as it is not very aggressive.

As to what oil.....so long as you're not talking about viscous GTSt diffs (which do NOT require LSD oil) then pretty much any LSD oil will do.  But more particularly, different brands of mechanical diff work better with different oils.  Nismo send the diff to you with Nismo oil, Cusco send Cusco oil, Kaaz ditto, etc etc.  Some of those even work better with different oils than what the maker recommends (ie, maybe less LSD action, but nicer manners).  So, the important thing is to pick your diff first, then ask the oil question.

And the best mechanical diff for a street car (assuming we're talking about a streeter here) is a helical, and they don't need LSD oil either.