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Old 03-06-2009, 08:08 PM
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bobcowan bobcowan is offline
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Join Date: Feb 2007
Location: Colorado Springs, CO
Cobra Make, Engine: Backdraft, supercharged Coyote
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I live in CO, where below freezing temps are pretty common. I usually park in the garage, but not always. I use 2 qts anti-freeze, tap water (we have good water here), and a bottle of surfactant - either Red Line "Water Wetter" or Royal Purple "Purple Ice". That seems just about the perfect mix.
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