all good info. BUT now I'm confused again....see below.  DOT 5 is silicon
base, correct and not compatible w/ glycol based Dot 3-4 BUT what they sell
now at Adv. Auto is synthetic Dot 3 & 4 and they it's compatible w/ my old
stuff...that was where my original ? started.....Can we get an authoritive
final concensus on this brake fluid?

In fact, I cannot located anything but synthetic at my FLAPS.....few old
time cans but majority is now sythetic?

Larry
Ga.

----- Original Message -----
From: "Jake de Villiers" <crescentbeachguitar@GMAIL.COM>

> "Dot 5 is silicone based..."
>
> On Dec 4, 2007 8:04 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
>
> > Normal brake fluid is glycol based. Dot 4 is a higher performance
standard
> > and is VW recommended. Dot is silicone based is not compatible with DOT
3
> > or 4.
> >
> > Dennis
> >

> > Subject: 85 Vanagon - DOT brake fluid, DOT 3 vs. 4
> >
> > Ok...it appears "most" brake fluid now is synthetic, agreed?
> >
> > If so, and I have the old DOT 3 in my system, must I flush all that
fluid
> > out to get consistant synthetic-only fluid?
> >
> > Any can anyone tell me of a case where synthetic DOT 3 was NOT adequate
> > for the job of stopping our small vans....
> >
> > Larry
> > Ga.
> >
> > PS. I'd like to stay with what I've already got in the system, synthetic
> > DOT 3 and I have a hard time believing my little daily driver van needs
a
> > HP, hi-temp. brake fluid so tell me how I'm wrong?  Any case studies
where
> > DOT 3 was not adequate....
> >
>
>
>