> I understand that there are at least two major antifreeze solutions. One
> green and the other orange. I went to add to my Cadillac and the service
> manual called for the orange one because it doesn't contain silicone(?)
> and to mix the two may be harmful to the system.
> My question is: If I purchase some orange ones, can I use the orange one
> in my green solution cars?
Rudy,
As of a couple weeks ago, both Prestone and Peak marked their antifreeze as
fully compatible to mix with anything out there. I would still try to keep
the colors trhe same if only because mixing the two yields a color
strikingly like very tired antifreeze...
David Lieb
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