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Subject: Boost gauge, Mobil 1

Hi Paul,

I won't address the boost gauge, but the weight of oil ought to be dtermined
by the ambient temperatures where you do your driving.  The handbook and
maybe Bentley will recommend different weights of oil for a range of
temperature excursions;  I would then use the appropriate weight of Mobil 1.



Jim Jordan

> ------------------------------
> Date: Tue, 30 Nov 1999 11:12:31 -0500
> From: Paul Anderson <panderso@arbortext.com>
> Subject: Boost gauge, Mobil 1
> Two '87 5kcstq questions for the digest:
> Boost Gauge: I've noticed that my boost gauge rarely reads more
> than 1.2 bar
> (I did see it display 1.3 _once_).  With the engine off, the
> gauge reads 0.9
> bar, which I suppose makes sense as I'm not precisely at sea level (about
> 800ft).  I've consulted the Bently and it does not appear that
> the gauge can
> be adjusted.  Also, I'm concerned that I may not be using the
> available boost
> pressure.  I haven't dug into it enough to acertain whether this is a
> full-throttle switch problem, a wastegate problem, or whatever.
> Does anybody
> have any other items that I should check, or am I just being neurotic?
> Mobil 1: This is _not_ an invitation for an oil flame war.  I've
> been using
> Mobil 1 products in my two other vehicles and want to start using
> it in the
> Audi.  The question is weight.  The 10W40 seems like an automatic
> choice, but
> I'm wondering if the 15W50 would be a better solution for the higher-temp
> environment of the turbo engine.
> Paul
> - -'87 5kcstq
> - -'82 VW Campermobile
> - -'92 FLSTC
> ------------------------------