The previous owner of my disco switched to pentofrost nf. I do not have a comment about it as yet. Well except it is pretty pricey. It is a very pretty shade of blue though.

 

I believe that is the same European required formula as G-05...sold by the liter and at a significantly higher price.

 

Wow - really opened up a can of worms on this one!
Think I will flush and try the green glycol - the silicates seem beneficial by sealing the small leaks which are always bound to pop up.
If it works good I will use on my Freelander when I finish rebuilding the engine. With all the hoses and fittings on these I need something not as prone to seepage.
Have a 94 Saturn - always used the Prestone green stuff - over 300K miles - all original hoses and does not leak a drop anywhere