OK, I normally have 45-50psi at speed, i.e. the engine is pretty tight.  But
when loaded up, i.e. pulling a long hill and rpms dropping, pressure drops
pretty linearly and the buzzer sometimes goes off, not every time.

As soon as I downshift, pressure rises, and tends to be about 10 psi per
1000K rpms, as I would expect.

tx,
bmc  :)
"Faith will move mountains, but you'd better bring a shovel...."

> From: "Forhan, Thomas" <Thomas.Forhan@mail.house.gov>
> Date: Tue, 1 Oct 2002 10:48:32 -0400
> To: "'Ben McCafferty'" <ben@kbmc.net>, "Dr. Rainer
> Woitok"<WOITOK@RRZE.UNI-ERLANGEN.DE>, Ralf Kleineisel <ralf@kleineisel.de>
> Cc: VW Syncro mailing list <Syncro@yahoogroups.com>, vanagon
> <vanagon@gerry.vanagon.com>
> Subject: RE: Still doesn't add up, was:  Re: [Syncro] Oil pressure mystery ,
> resolved???
>
> Ben,
>
> I think the .9 bar warning, at speed, is just that, a real warning of
> possible catastrophic engine failure.
>
> The 2.0 bar minimum is the minimum operating spec for a normal engine.
> Anything below this, and you still have low oil pressure, a problem for sure
> but maybe not critical.
>
> Now, you may still be having a problem with the high pressure switch, if it
> sets off at 1.4 bar or the similar. Still I think there is a problem with
> the engine as well- 20 psi at speed doesn't sound good to me. I'd agree with
> the Bentley, and want to see something like 30 psi.
>
> Good luck
>
> Tom F.
>