Maybe it's me, but how can you void a warranty simply by changing the oil
sooner than "required"?  Never mind - don't answer that.  And the statement
that "...the (engines) are designed for a 10K change interval...".  Okay,
that may very well be, but is present day dino juice able to hold up for
that time?  Keeping in mind that VW's sold today are intended for mass
appeal, rather than the VW enthusiast, the service managers comment may
just be a service ploy, to keep you coming back.  I can't for the life of
me comprehend why changing the oil, as described, would do ANY harm - other
than keep repeat business from a VW dealers service dept.  It's possible -
likely, in fact - that I'm missing something...

Alan Bosch
& Phred ('88 Wolfsburg)
Rochester, NY