DTE-13M is not the same as Pentosin 11S(important)

[cobram at juno.com]

The sky is not falling.  Since (according to Audi's own bulletin) 7.1 and
11S are interchangeable (see below before arguing), compatibility with
7.1 is all that's needed.  The initial posts were from a lister who got
the info from a lubrication engineer who checked the working specs.   I
doubt that Mobil has changed the specs since then, but it's possible.
Anecdotal evidence suggests they are compatible.  There are at least 5
V8Q listers (not counting my 2) using the DTE with no ill effects, and a
few other 44's on and off the Qlist.  I tried it first in the 5KS, and
after no ill effects started using it on the rest of the fleet.  Using it
to top off already leaking systems has not exacerbated the leaks either.

If you check the archived posts, it was never said that it was the "same"
as the green gold, but the specs close enough to make it interchangeable.


As for any reported ill effects, the first time I flushed the 5KS with
the correct Pentosin green gold many moons ago, the rack started leaking,
after which the pump let go, after which a line or three started leaking,
after which the bomb died.  Should have left it alone I guess, since the
crud in the system was holding everything together.  The weakest point in
the system will leak, once fixed, the next weakest point will make itself
known. Neither the Pentosin nor the DTE is pixie dust that will bring
back a system that's leaking or on it's way out.

It seems to me that a comparison with the working specs of the actual
system is a more valid tool than just between the two fluids.  Given the
propensity to fail,  one could conclude that 7.1 and 11S are probably not
what should be in there either....

Here is the official word from Audi on the 7.1 and 11S compatibility:

 AUDI TSB reference Bulletins thru 1993 (issued Oct 1994)
 Audi tech bulletin 48-89-T07, Nov '89 (EXACTLY QUOTED)
 "HYDRAULIC SYSTEM FLUID - NEW TYPE
 Hydraulic system fluid has been improved as of M.Y. 1990

 New: Hydraulic Fluid, part number unchanged.
 This fluid is more temperature resistant
 Color: Olive

 Old: Hydraulic Fluid, PN 002 000
 Color: Green

 The new hydraulic fluid can be identified by the RED cap on
 the container

 Note: New and old hydraulic fluid can be mixed if necessary"
 --------------------------------------------------------------

 Do NOT mix either 7.1 or 7.11 mineral oil in audi hydraulic
 systems which  call for "Dexron Automatic Transmission Fluid". The ATF
 hydraulic systems are  usually identified by the metal resevoir, the
mineral oil 7.1
 and 7.11s  hydraulic systems are usually identified by the plastic
resevoir. ATF
 application are usually found on the older 4000, Urq and pre
 84 hydraulic  systems (USA). The 7.1 non synthetic mineral oil fluid is
 usually found in  all 1984> 1989 audi 500/200 cars (USA) The new 7.11
fluid is
 found from the  factory in some M.Y. 1990 audis, and all 1991> audis.
Given
 the better heat  resistant characteristics of the 7.11s (synthetic
mineral
 oil) fluid, it is  the preferred fluid for all audi applications
specifying G 00
 2 000 mineral  oil hydraulic fluid.

 If you have any questions regarding the application for your
 specific car,  please consult either your owners manual, the label on
your
 resevoir, or your  audi dealer.

BCNU,
Cobram at Juno.Com
http://www.geocities.com/cobramsri/index.html

On Mon, 17 Dec 2001 01:21:11 -0500 Brett Dikeman <brett at cloud9.net>
writes:
> Indirectly(which steams me somewhat), someone who shall remain
> nameless found a problem with DTE-13M, and posted on the NW Audi
> and
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