Re: S4 Tranny Oil (and 200q vs S4)

[John Graham <jgraham1@erols.com>]

Phil Rose wrote:

> >Date: Mon, 12 Jan 1998 20:15:13 +0000
> >From: John Graham <jgraham1@erols.com>
> >Subject: Re: S4 Tranny Oil
> >
> >Paul E. Rivera wrote:
> >
> >> Ok Gang, I have not kept up on the threads on lubricants, but what is
> >> the hot tip for
> >> the S4/200TQ Trans?
> >> Is the new Castrol Synthetic or Mobil 1 the way to go?
> >> Manual says synthetic, but what is that?
> >> Does the GL-5 rating apply?
> >
> >Be carefull. I think S4's spec a GL-4 Synhetic called G50.
> >GL-5 oils are corrosive and Mobil says do not use there oil in a GL-4
> >transmision.
> >You can go with the Audi OEM Synthetic at $25.00 a quart.
> >Or use redline Synthetic MT-90 at $8.00 a quart.
> >
> >John
> >1990 CQ
>
> Hmmm. I was just about to reply to a recent question (Bruce?) about the
> distinction between the 200q and the S4 trannies. It was my understanding
> that these are _not_ the same. I believe the S4 introduced a "newly
> designed Getrag transmission" (according to material quoted by the S4
> Registry website). That they are not the same might be supported by the
> difference in relative reliability between the 200q and the '92-'93 S4
> versions. Of course, it's conceivable that there is some degree of
> interchangability.
>
> So considering that Paul's question was about "S4/200TQ Trans", I'm not
> sure if John's answer is relevant to the 200q part. John?
>
>

Time two whip out the bently or owners manual.One thing for sure, if it's a
hypoid gear differential it may take a GL-5 oil.
If not, use GL-4.
Now I just know Audi didn't spec a GL-5 oil in a non hypoid gear tranny.
If they did, look for a sort tranny life. :-(

John
1990 CQ