Amsoil synthetic oil

[pjrose@servtech.com (Phil & Judy Rose)]

I recall some previous postings have made positive statements about using
Amsoil synthetic oil. That happens to be the brand recommended by my local
Audi garage. They say that the initial use requires that a special
"flushing" operation be done. As I understand it, a proprietary cleaning
additive is dumped into the old oil and run for a specified interval. This
is followed by a change to the Amsoil synthetic and special high-efficiency
filter.

Any _bad_ experiences with this procedure? Also, is a lengthened change-
interval (i.e., > 3000) with this oil/filter combo a reasonable
expectation? This is for the "new" '91 200q, which is at about 95,000 miles
and which I've got to assume has been running with dynalube.

Phil