On Fri, 24 Dec 1999 21:00:00 -0800
"Mike Miller" <mwm@lanset.com> wrote:

> I have heard that what wears out in oil is the additives, used up by the
> acid produced during combustion, so that even if you have filtered out all
> the particles there is still wear from acid etching.
>
> Not so?
>

Yes if the base oil stays intact, which synthetics tend to do, and you
removed the soot by filtering, the weak link is now the additive
package.

But since you top up the system with half a litre every 3000 miles when
you change the TP, the additive levels stay okay.

http://tdiforums.abahn.bc.ca/NonCGI/Forum5/HTML/000202.html

You can see the oil analysis results here..you'll see here that the oil
hasn't even gotten close to be depleted of its additives.

> Mike
> '85 Westy [and I will change the oil, real soon]
>
> ----- Original Message -----
> From: Dominique Cormann <kozmik@HOME.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Thursday, December 23, 1999 10:51 PM
> Subject: Gulf coast oil bypass filter system.
>
>
> > Jonathan Bartlett was nice enough to send me some pictures of the oil
> > bypass system he installed on his Passat TDI.
> >
> > The system allows him to do 60,000 mile oil changes. The oil is still in
> > good condition as verified by oil analysis testing.
>
>

--
============================================================---------
Dominique Cormann                              Email: kozmik@home.com
Homepage: http://kozmik.guelph.on.ca
Diesel page: http://kozmik.guelph.on.ca/gtdproject
84 Rabbit D - daily driver              84 Rabbit GTD - work'in on it