Re: Synthetics-my last (very long) word.

[David Weiss <dzweiss@worldnet.att.net>]

>Many of you Audi enthusiasts ... could use more information.

Aren't you one of us?  (If not, you will be assimilated.)

>Synthetics ... have much much less in the way of additives, I think >96% >pure base stock...

That seems a bit high, although VI Improver is a large part of the
additives in conventional oil.  Based on % Zn in the finished oils,
treat rate is at least 6-8%.  The treat rate for additives other than
VII should be higher than in conventional oils, to support longer drain
intervals.

>Longivity aside, synthetics always perform better in all known wear >tests, particularly the 'three-ball' tests.

Like the silver bearing test for railroad diesels?  (Or was that four
balls...)

>- - I found two good articles on synthetics:
>http://www.euro.net/TDRS/MINIWEB/syn_oil.html
>http://wj.net/f-body/trivia/syn_oil.html

The Redline notes are esp. good!