Radiator fluid Ques

[69DirtyRat]

I've been meaning to put this thread ques up for a while

I've good Aluminum (not Aluminium) block,heads and radiator... should I stick with the green stuff or because everything is aluminum should I change to a later model fluid (ie Red stuff)?????

[RIVIERA]

Dirty Rat I don't know if its any good to you, but when I enquired about servicing our new shopping trolly (which also is all alloy) the GMH dealer was very adament that the coolant should have a special GMH supplied additve, He even went to the trouble to extract a sample from the over flow bottle and tested it for the correct mix proportions, I didn't see him do it so I don't know what colour it was, He did tell me that the correct additive is available at most HSV dealers, and the correct proportions are on the container.

John