Resurrection of G40

[karmann]

Just pulled out my G from being stored for 3 years, need to change the coolant and i have a bottle of G12 is this OK to use?

[PeteG40]

should really be g12+  or g12++ (purpley stuff from gsf)  pink g12 doesnt mix well with g11 (which is what was originally used in g40s)