omg. Did you even read the answer? It was super useful indeed. "The short answer is it doesn't make much difference to the differential." Thats very valuable information. So nobody has to be utterly worried about their diffs with regard to oil.
Sound pretty useful to me. So it added to the conversation ideed, because this thread is about oil weight.
And two members thanked me in the thread for posting it.
Now tell us what YOUR post added to the conversation.

 

No diff oil thread has ever eluded strife and discord.

Certainly any 'oil' thread suffers from this, but diff oil seems to be on another level...

I think some of the recent technical posts have been worthwhile and thought provoking, but perhaps could have benefitted from smoother delivery, especially for such a potentially controversial topic.

 

Oils that are rated GL4 + GL5 like the the Motul i used in my mix are in fact GL5 oils with modern additives that dont harm brass anymore, therefore they can be used for GL4 applications to.


https://widman.biz/uploads/Transaxle_oil.pdf

 

Gents,
Remember this is a forum to spread information. The ultimate answer to diff fluid won't be found in this thread, but good information has been shared. Let's keep it civil.

 

Damn right Motul is good quality
I may give it a go after I finish my Liqui Moly 85W-90 GL5 LS oil.

 

From the Motul link posted above (75W-140 version):

TYPE OF USE

Specially designed for racing vehicle gearboxes : speed way, rally, raid…

All hypoid differentials with limited slip system, gearbox with integrated limited slip differential,

mechanical transmission, synchronized or not synchronized gearboxes, transfer gearboxes operating

under shocks, heavy loads and low revolution speed or moderate loads and high revolution speed.

PERFORMANCES

STANDARDS Above Existing Standards

SPECIFICATIONS API GL5 – MUGEN Le Mans 24H – HEWLAND and X-TRAC Japanese GT - I like the sound of this

 

omg did YOU actually read post #32?
Like... the first 3 sentences?
It was posted... you know... like... 79 posts ago?

 

And with this answer you show the 2 oils you mixed have a different additive package.
And you deplete both by 50%.
And that's not good.
In my opinion.

 

Replying to a post like this is tricky so I'll say it myself :sure, the shoe fits a little bit
Smooth delivery?
Pretty please with sugar on top?
(remember that quote? The Wolf is driving a NSX too! "It's 30 minutes away, I'll be there in 10")
And where does the controversy start?
It kinda started when Honda printed the first owners manual and listed SAE90 GL5/6 as diff oil.
And they never even changed it.
Maybe its available everywhere in Japan?
When I read this thread from post #1 it's actually good to see most now use an oil closer to the original.
That was different a couple of years ago.
And please, in your smoothest way of replying explain to me how parts falling out of your Torsen is not such a bad thing?

Oh well...

 

They are pretty much one of the same, they are so close it makes little to no difference in terms of how the oil performs. Many SAE90 oils are in fact 80w-90 as they pass all the requirements for SAE90 they can be sold as one and some even are sold as both. Or they are in Europe anyway.

Is there are record of lots of S2000 diff failures? If so fair enough, but it seems there is lots of discussion to solve an issue that, at least here in the UK does not exist. The response from torsen makes sense.

Cheers,

Guy