What oil should I use for my new cusco RS 1.5way?

[mxfive95]

Hi all,

I'm going to install my new Lsd this wknd with my mechanic and wondering which oil to use. It's going into my original diff housing on an NA8.

Cheers craig

[Hellmun]

Well I've got a 2 way Tomei Traxx and I've ran Royal purple 75-90 gear oil. Which I managed to burn.... Penrite Sin 75 has been good so far. It seems to have more lim-slip additive as it reduced the chattering more than the Royal Purp. I will say it was an endurance race that killed the royal purple which most people won't use their cars in

[mx52nv]

SAE75W/90 Gear oil - most of the WA crowd uses Redline Shockproof.
You will need 1 liter or 1.06 quartz (two bottles) for a NA8/NB8 diff.
I suspect the NC will require a little more.

Les

[Charlie Brown]

SAE75W/90 Gear oil - most of the WA crowd uses Redline Shockproof.
You will need 1 liter or 1.06 quartz (two bottles) for a NA8/NB8 diff.
I suspect the NC will require a little more.

Les

The NC is actually less. 0.7 litres GL-5 90 for the diff. Gearbox is 2.1 litres GL-4 75W 90.

[rascal]

I use Penrite Sin 80 (80W-140) in my Mazdaspeed 1.5?way.
Changed it after the first track day break-in and its been excellent (quiet, no chatter) ever since..

[Locutus]

i'm surprised all oils mentioned so far are not labelled LSD compatible by their manufacturers.

i'm in the same situation and am currently eyeing motul 90PA.

[wun911]

Hrmz kazz make their own LSD diff oil I was thinking of bying a tin of that.
Can you use the same oil that you use for the gear box MT90?

[mx52nv]

Cusco LSD Oil Group Buy?


Les @ MX5 Shop

[wun911]

Sorry I'm not really willing to wait for another GB.

I think you can get it locally, around 60 dollars for a 1 L tin.

[Hellmun]

i'm surprised all oils mentioned so far are not labelled LSD compatible by their manufacturers.

i'm in the same situation and am currently eyeing motul 90PA.

I called Hi-Octane in Sydney when I got the Tomei Diff as they're the australian distributor. He said they run the Royal Purple Max gear with all their cars. They've made a few weapons so figured they were a good source. The Royal purple lasted 30,000km but then it's tracked non-stop. So I probaly should've changed it earlier...

[deviant]

My NA8 has got an unknown LSD in it. Low speed / tight maneuvering is hard work with juddering and all sorts of funny noises so its definitely an aftermarket one of some sort.

I have got in my shed an unopened bottle of Limslip 90 Extra heavy duty SAE 80W90, API GL-5/6. Would this be okay to use?

[fattima]

Are you sure it is an LSD? Could be a locked diff by the sound of it.
I used to run Limslip in my plate type diff of my Escort with no probs.

[deviant]

I don't think it is locked. I have not really had a chance to 'make progress' properly but it feels like my old Mk1 MR2 did with a harsh KAAZ clutch type LSD...behaved like a locked diff at low speed but felt normal on the move.

I just want the thing to be a bit quieter and less juddery. I'm thinking part of the problem may be that it has not been done in a long time!

[16bit]

that limslip 90 sounds fine. those are the same oil specs that kaaz recommend too.

i just bought some nulon lsd oil which has simlar specs to those.

http://www.nulon.com.au/products/SAE_90 ... ntial_Oil/