Pete and Peter,
Thanks for your points.
In fact I have no room to use a more basic oil. Audi in Brazil only
accepts 100% synthetics. (they say it is due to the sludge problem)
So, the only variable that is in my control is the time interval.
And, Pete, yes, I do a lot of short commuting. Besides, temperatures
here are like in Florida.
Best Regards, Jorge

Peter Bell > wrote in message >. ..
> In message >
> (Jorge Fonyat) wrote:
>
> > Is this model related or just an user option ?
>
> AFAIAA, it applies to all models across the Audi range, except for the
> RS6. Cars come from the factory filled with long-life oil and it is
> then up to the owner whether they want fixed or variable servicing
> intervals. However, this only started in 2000 - I don't know whether
> earlier cars can be moved to the variable service interval regime.
>
> My feeling is that if you opted to fill your car with the higher spec
> oil, then it would be perfectly okay to go two years between changes.
> The appropriate oil spec is VW 503.00 (or VW 503.01 - intended for the
> RS4 and 1.8T over 180bhp). I'm not sure what brands are most commonly
> available in the USA but, for instance, Valvoline Synpower XL meets the
> lower spec and Synpower MXL the higher spec.
>
> > If it is an user option it means that the "never more than 1 year"
> > interval between oil changes (regardless mileage) has been doubled.
> > This is fundamental to me, as I run just 3,000 miles/year and feel
> > VERY discomfortable in changing almost new synthec every 12 months.
> > Jorge (A4 1996 2.8 12V)
> >
> > Peter Bell > wrote in message
> > >. ..
> > > In message <5LYjd.384135$D%.144428@attbi_s51>
> > > Bob Navarro > wrote:
> > >
> > > > What oil is used from the factory, and do they really use a different
> > > > 10k-mile oil?
> > >
> > > In the UK (and the rest of Europe?), there are options of standard fixed
> > > interval servicing and variable interval servicing. The fixed interval
> > > is normally 1 year/10,000 miles (and more miles for a diesel engine),
> > > the variable interval can be anything up to 2 years/20,000 miles (30,000
> > > for a diesel). Different oils are used for the two options.