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.

Kevin · 08-13-2005

I use green in my car

Jim Jones · 08-14-2005

I didn't even know there was a red coolant in 1990. I think the Dexron (orange-red) is a newer type of coolant. Mine has green as well.

Jim

Aurora40 · 08-14-2005

There was no Dex-Cool in 1990. The cars came with the green stuff. However, you can use other ethylene-glycol coolants such as Dex-Cool. It won't have any long-life properties when used in a system that had green coolant, though.

I'd stick with the green stuff, except it's just about impossible to find. I ended up using Prestone Extended-Life stuff just because that's the closest to normal green silicated coolant I could find...

Nick · 08-18-2005

I just use the green stuff, and change it every other year, while adding a bottle of Red Line Watter Wetter. Also, don't forget you're better off using distilled water for the lack of mineral content.

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.

08-13-2005	#2
Kevin Join Date: Jun 2005 Location: pittsburgh Posts: 4,633	I use green in my car __________________ It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B"

08-14-2005	#3
Jim Jones Join Date: Apr 2005 Location: I'm in a constant state of euphoria in the Z! Posts: 237	I didn't even know there was a red coolant in 1990. I think the Dexron (orange-red) is a newer type of coolant. Mine has green as well. Jim __________________ Life's too short to be unhappy! [IMG]http://i4.photobucket.com/albums/y128/koolaid117/Montage.gif[/IMG]

08-14-2005	#4
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,713	There was no Dex-Cool in 1990. The cars came with the green stuff. However, you can use other ethylene-glycol coolants such as Dex-Cool. It won't have any long-life properties when used in a system that had green coolant, though. I'd stick with the green stuff, except it's just about impossible to find. I ended up using Prestone Extended-Life stuff just because that's the closest to normal green silicated coolant I could find... __________________ Bob Saveland Former owner of #2517 [IMG]http://a.random-image.net/aurora40/vette.jpg[/img]

08-18-2005	#5
Nick Join Date: Jul 2005 Location: Auburn, Washington Posts: 586	I just use the green stuff, and change it every other year, while adding a bottle of Red Line Watter Wetter. Also, don't forget you're better off using distilled water for the lack of mineral content. __________________ Nick ZR-1 Net Registry Founding Member #32 - lapsed...