I have a stock jza70 R spec, done 100k's, did a bit of research on the best oils a fews back for the R154 and torsen diff. I was recommended 
redline GL 5 as well. No problems with it, Redline MT 90 in the 5 speed is also very good and really
improved the clunky shifting you get with a R154.  Some synthethics can be too "slippery".
Only downside it that it comes in quart bottles so you will have a fair bit left over.

hope that helps

Cheers

Dave 
 






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On 22/01/2014, at 9:52 PM, Hunt M <huntatwork@gmail.com> wrote:

Thanks for that. I'd thought about that exact product!

On 22/01/2014 7:57 PM, "Aaron Mcfadzien" <aaron.mcfadzien@outlook.com> wrote:
Hey Hunt,

Im currently using Redline 75W90 GL-5 Gear Oil in my JZA70's Torsen LSD

http://www.redlineoil.com/product.aspx?pid=133&pcid=4

used about 1.3ish Litres if i recall correctly? and its been really nice, locks up nice and keeps it sideways, on the paddock at least haha

Im happy with the oil anyway, It was recommended to me, and it hasn't caused me problems for the 2 years its been in there now

Will be interesting to see what others are using too

Cheers

Aaron


Date: Wed, 22 Jan 2014 18:08:32 +1300
Subject: [sconz] Torsen diff oil
From: huntatwork@gmail.com
To: sconz@list.supras.org.nz

Hey all.

Has anyone had any experience with diff oil in a MK3 Torsen diff?

Cheers
Hunt

---
Supra Club of New Zealand - http://www.supras.org.nz/
Website sponsored by Alltech Diesel & Turbocharger http://www.turbo.co.nz

---
Supra Club of New Zealand - http://www.supras.org.nz/
Website sponsored by Alltech Diesel & Turbocharger http://www.turbo.co.nz
---
Supra Club of New Zealand - http://www.supras.org.nz/
Website sponsored by Alltech Diesel & Turbocharger http://www.turbo.co.nz