Frank,
I don't know who started the campaign to use non-detergent oil. As someone
said earlier, there are no combustion by-products in a gearbox so there is
no need to use a detergent oil. However, I am not aware of any damaging
effects from the detergent additives so I see no reason to specify a
non-detergent oil for a gearbox, with or without overdrive. I use Valvoline
Racing 30 wt., for its anti-foaming qualities and high shear strength and,
quite honestly, I have no idea if it is a dergent or non-detergent
oil..................!
Lawrie
----- Original Message -----
From: frank krajewski <frankk@intap.net>
To: British Sportscar Center <Lawrie@britcars.com>
Cc: MG List <mgs@autox.team.net>
Sent: Tuesday, August 15, 2000 12:11 PM
Subject: Re: [Fwd: OD]boundary="------------54299D639E69BFCE4261F03B"
> Lawrie: Thanks again. Who started the campaign to use the 30
wt.non-detergent?
> It makes sense and I have done it for years although some on the question
its
> use since it is not specified in the shop manuals.
> Frank
>
> British Sportscar Center wrote:
>
> > I have it on reliable authority that, in the early 70's, BL issued a
> > Technical Bulletin to their dealers which stated that it was OK to use
90wt.
> > rear axle oil in gearboxes (no distinction made between o/d or non-o/d).
> > About ten months later, another Technical Bulletin was issued which, in
more
> > urgent terms, stated that the use of 90 wt. rear axle oil in gearboxes
was
> > no longer recommended.
> >
> > Bentley probably missed the second of those two bulletins.........
> >
> > Lawrie
> > British Sportscar Center
> >
> > ----- Original Message -----
> > From: frank krajewski <frankk@intap.net>
> > Cc: MG List <mgs@autox.team.net>
> > Sent: Tuesday, August 15, 2000 8:26 AM
> > Subject: [Fwd: OD]boundary="------------54299D639E69BFCE4261F03B"
> >
> > > This is a multi-part message in MIME format.
> > > --------------54299D639E69BFCE4261F03B
> > >
> > >
> > >
> > > --------------54299D639E69BFCE4261F03B
> > > Content-Disposition: inline
> > >
> > > X-Mozilla-Status2: 00000000
> > > Message-ID: <39996102.4B32F26A@intap.net>
> > > Date: Tue, 15 Aug 2000 11:25:54 -0400
> > > From: frank krajewski <frankk@intap.net>
> > > Reply-To: frankk@intap.net
> > > X-Mailer: Mozilla 4.7 [en] (Win98; U)
> > > X-Accept-Language: en
> > > MIME-Version: 1.0
> > > To: Charley & Peggy Robinson <ccrobins@ktc.com>
> > > Subject: Re: OD
> > > References: <39989B65.2671E388@intap.net>
> > <011601c006bc$43ff5880$3d64a8c0@gouldfo.com> <399956E2.4204E3F5@ktc.com>
> > >
> > > Charley: The Bentley Manual says to use the same oil in the engine or
> > > tranny or to use 90 wt. I have been told by those more knowledgable to
use
> > > 30 wt. non-detergent. See Lawrie's posting. Bill Bassett, noted Jaguar
> > > restoration shop owner and my neighbbor, highly recommends 30 wt.
> > > non-detergent and his shop uses it in all the vintage Jags they
restore. I
> > > am concerned that the Bentley manual also recommends 90 wt!
> > > Frank
> > >
> > > Charley & Peggy Robinson wrote:
> > >
> > > > Paul,
> > > >
> > > > I never did see a reasonable explanation of why one should use
> > > > non-detergent oil in the L de N, MGB overdrive. The driver's
handbook
> > > > in my Bentley manual makes no such distinction.
> > > >
> > > > CR
> > >
> > >
> > > --------------54299D639E69BFCE4261F03B--
> > >
>
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