[tech] what is g12 - same as GM orange?

[Ti Kan]

David.Ullrich at ferguson.com writes:
> [ Dex-cool coolant ]
> If you are doing a complete flush & fill, is there any harm in moving over to the orange phosphate free stuff?

If you do a web search on Dex-cool you'll find lots of people who made
the switch and had bad experiences.  The conclusion I drew from that is
if you have a late model GM car that came with Dex-cool, use it.  Otherwise,
don't.

For our Audis, you can switch to the pink G12 coolant if you flush the system
*really really* well.  The old conventional coolant doesn't mix with the G12.

VW/Audi engines requires phosphate-free coolant.  The old G10/G11 (blue)
and new G12 (pink) factory fill coolant are all phosphate free.  The G12
is based on organic acid technology that gives it very long service life.

-Ti
2003 A4 1.8T multitronic (soon)
2001 S4 2.7T
1984 5000S turbo
1980 4000 2.0
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