which redline synth tranny fluid?

l.leung at juno.com l.leung at juno.com
Wed Jan 14 11:13:24 EST 2004

Redline MTL or MT-90 are GL4 and are NOT 
appropriate for the diff. 

I forgot what Redline calls the GL5 
gear oil, but I believe that it is
a 75W-90 synthetic. Also Mobil 1 
synthetic Gear Oil (same weights)
is appropriate.


Date: Tue, 13 Jan 2004 19:24:39 -0800 (PST)
From: Ti Kan <ti at amb.org>
Subject: Re: which Redline synthetic tranny fluid 4k quattro?
To: mark.wolfson at verizon.net (mark wolfson)
Cc: quattro at audifans.com
Message-ID: <200401140324.DAA27846 at amb.org>
Content-Type: text/plain; charset=us-ascii

mark wolfson writes:
> I am ready to put synthetic transmission oil in my 1985 4k quattro. It =
> is GL4 80 or 90 Weight. So, I want to use Redline 75w 90W synthetic =
> transmission oil. Is this the right one? I know my rear diff is a locker
> and would take MT90.

For the transmission you can use either MT-90 or MTL.  MT90 is a little
heavier and potentially provides a little better lubrication.  MTL is
suitable for colder climates or if you want to lighten the shift feel.

The rear diff is specified to use GL5 gear oil.  I am not sure if MT90
is the correct fill.

2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
 R 1 3 5  Ti Kan
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