RE: which fluids to chage on Quattro drivetrain and when?

["Duff, Ian" <IDuff@charter.com>]

I have recently done just what you are contemplating, and oh, does my
Coupe seem happy!

Here's what I've done: Mobil 1 10w30 in the engine (it's *cold* up
here),  three quarts of RedLine MT90 in the transmission, includes the
center (TORSEN) differential, and one quart of RedLine 75w90 in the rear
diff. I called RedLine (800.624.7958) to find out *exactly* what
formulation to get. The RedLine I got locally for $8/qt, I've seen it
(at GPR, 800.321.5432, I think) for as little as $7.50/qt, plus
shipping. I paid about $23 for 6 qts of Mobil 1 at WalMart, and got the
factory filter, a new drain plug and a new drain plug crush washer from
Linda at Carlsen

Call it $4/qt for Mobil 1, equals about $20 for motor oil, and 4 qts @
$8 each for the trans/diff equals $32, plus the roughly $10 for
filter/plug/washer, ends up at $62 for parts. It should take between one
and two hours total to do this, at a typical rate of $30/hr equals $60
max for labor. This ends up at $122 total, your $150 sounds kind of
high.

Beware, the trans has a 3 qt capacity (according to both Bentley and the
owners manual), but will only take about 2 qts right after it's been
drained. You need to move things around to wiggle out the air pockets so
it can take the last quart.

HTH.

------------------------------------------------------------------------
-
Ian Duff, 1990 Coupe quattro 20v, Red/Black
quattro Owners Club member P877

Home: New Bedford, MA, USA
Work: Charter Systems, Inc., West Newton, MA, USA
------------------------------------------------------------------------
-

>----------
>From: 	RELAYER@aol.com[SMTP:RELAYER@aol.com]
>Sent: 	Wednesday, 15 January, 1997 12:19 PM
>To: 	QUATTRO@coimbra.ans.net
>Subject: 	which fluids to chage on Quattro drivetrain and when?
>
>Well, now that the old Coupe Q has hit the big 80,000 mile mark, I think
>it;'s time to replace alll the QUattro drivetrain fluids to ensure the long
>life of the torsen and diffs.
>
>Which do I need to replace?  Rear diff, center diff, manual trans fluid, all?
>
>One good shop around the corner said they would do all the fluids for about
>$150, good price?
>
>Thanks
>
>                    /\        _I             Christian J. Long
>                  /    \ I_I I_I I           Orlando, Florida, USA
>                                             University of Central Florida
>Class of 1994
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>1990 Coupe Quattro    Red/Black, K&N cone, BBS wheels, 80K          
>1990 90                     Gold/Tan, 70K, LOOKING FOR REAR WING SPOILER
>Past Audis:
>'80 5KT  '84 Coupe GT  '85 Coupe GT  '87 Coupe GT2.3  '875KCST(was Dad's)  
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>