No subject

> take
this coolant, but my 1991 calls for the Zerex G-05 "yellow"
> stuff.
> In talking to the people at the radiator shop (who
just tested
> my rad), they always revert any car back to the good
old green stuff if
> they can - meaning complete flush out if
customer lets them do it.
> Same for the trusted VW/Audi shop I
talk to.
> 
> If I go factory,
> the book says
G-11, but it looks like that superceded to G-12 (which seems
> to
be very much like dex-cool, and then to G-12+ which seems to be very
> much like Zerex G-05. (and - no - I don't know why the naming
scheme seems
> so similar from Zerex (made by Valvoline) and VAG.
The G-12 seems to have
> had problems - just like GM is having
with its dex-cool. There is a big
> class action lawsuit over that
one.
> This G-05 seems to be closely
> related to the old
green stuff, but lasts longer.
> 
> To complicate
> matters, it seems G11 is superceded with G-48 which seems to be
branded
> "Glysantin" and made by - wait for it - Zerex,
and the major
> difference is a little more silicate in the
G-05.
> 
> So - I am
> leaning toward the Zerex
G-05 unless you all can talk me down.
> I want
> to avoid
the OEM stuff just because I want to be able to get emergency
>
coolant anywhere, and mixing the wrong coolants anymore causes big
> problems quickly.
> 
>