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Cusco RS LSD oil？

Michael33
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Michael33 Contributor

Michael33

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Posted

Hi guys. I know this might has been asked a thousand times but I just did not find a good answer. Just forgive me and give me an answer please, thanks.

So I just bought a Cusco RS LSD for my r33 gtst and am finding the proper oil for it.

Iread cusco doesn't recommond full syn oil for its lsds. However penrite seems to only offer full syn lsd oils in its pro gear range.

What oil should I use? Should I go penrite's normal diff oil(the green label ones) or somethings else? Better to be something I can find in Autobarn or SCA.

Also, what viscosity do you suggest?  The car is a basically street car. Kinglake about twice a month.

Thank you all in advance.

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https://www.sau.com.au/forums/topic/475142-cusco-rs-lsd-oil%EF%BC%9F/
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KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

The Cusco product is 80W 140 or 80W 90

https://www.cusco.co.jp/en/news/products/lsd_oil.html

You can buy it from

https://www.rhdjapan.com/cusco-lsd-gear-oil-80w-90-1-liter-fr-4wd-ff.html

It may be expensive but so is your diff and you won't need to change it very often.

hardsteppa Grand Master

hardsteppa

Posted
Posted

Penrite diff oils are also in mineral - this one rudebwoy>>

https://www.penriteoil.com.au/products/gear-oil-80w-90-mineral?gclid=EAIaIQobChMIxr-x07-H3gIVjAQqCh0v-gZJEAAYAiAAEgJGDfD_BwE

I use the above oil, and have used their 85-140 one too although prefer the thinner weight. I have Cusco 1-way RS lsd in an R33 gtst too, with it set up fairly tight - 100% lock plate setup, and 8 of 12 preload springs. Used to shudder alot, but on the advice of a diff specialist, added the Penrite limslip additive, and much better now. Quite friendly on the street but still locks without issue.

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