The latest VW coolant is G13 (G013A8J1G).  G13 is backwards compatible with
G12 & G11.  "Mixes with anything."
The previous G12 (G012A8G1G also "red") was not compatible with G11.
G12+ is an organic hybrid that is compatible with both G11 & G12.  This
version was only sold by the aftermarket, I don't think VW ever carried it.

G11 & G12 when mixed is BAD....

Jason

On Mon, Jan 13, 2014 at 12:44 PM, Dave Mcneely <mcneely4@cox.net> wrote:

> My understanding is that the most important question is, "Is it phosphate
> free?"  mcneely
>
> ---- Alfred Bagdan <abagdan@SHAW.CA> wrote:
> > Hi all Vanagonians,
> >
> > Is the new red coolant from VW safe to use on 85 Vanagon engines?  It
> states
> > on the container "Aluminum compatible", but you never know with Vanagons!
> >
> > Thanks,
> >
> > Alfred
> > 85 Westy
>
> --
> David McNeely
>