Original Coolant for a 1990 ZR-1 - ZR-1 Net Registry Forums

Bell Curve · 08-13-2005

What was the original coolant that came in a 1990 ZR-1. Was it the green stuff, or was it the red stuff? I've heard different stories as to which you should use, and that if your car came with one you should stick with it rather than change it. I know many GM cars come with the red-orange stuff now, but I wonder what was our original coolant.

08-13-2005	#1
Bell Curve Join Date: Aug 2005 Location: Pineridge Posts: 341	Original Coolant for a 1990 ZR-1 What was the original coolant that came in a 1990 ZR-1. Was it the green stuff, or was it the red stuff? I've heard different stories as to which you should use, and that if your car came with one you should stick with it rather than change it. I know many GM cars come with the red-orange stuff now, but I wonder what was our original coolant.