T85 rear differential fluid

[LL - NY]

I had M1 GL4/GL5 in my 200Q's tranny. BIG mistake. Got grindy
synchros, didn't know any better at the time (it was in for about
4 years). Switched to Redline MT90. Cured the grindy synchros.
Stick by the Redline. BTW, the viscosity of MTL doesn't meet
Audi spec, so you NEED MT-90. Totally does the job.

LL - NY


On Mon, 14 Feb 2005 13:28:15 -0600 (CST), Tom Leppke-Hennig
<printhead at usinternet.com> wrote:
> No, not, MT-90 or MTL. You want one of the the GL-5 rated 75/90 fluid they sell. The GL-4
> fluids like MTL and MT-90 are for the transmision, GL-5 for rear-ends.
> 
> Check around in the archives. I have experienced this myself in my Scirocco and many others
> have spoken of winding up with "grindy" syncros after putting GL-5 rated lubricants into
> manual transmissions. Mobil 1 gear oil for instance, says GL-4/5 rated on the bottle. But
> according to Redline, and VAG Bentley manuals, that a contradiction/incongruity.
> 
> It takes a while to glean the straight dope out of Redline's website, but after a bit of
> clicking around, it becomes clear.
> 
> Tom LH
> 1995 90q
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