Why do people on thia forum often say to use orange coolant? That stuff turns to mud before the "green" stuff and costs much more. GM says it goes 5 years or 150,000 miles, NO WAY. I owrk at a dealer and 90% of our cars are GM's, when you open the radiator most of them look as if it were filled with Georgia Clay. The stuff looks disgusting. Just use regular green stuff, especially if your just testing it to see if it works. Besides, anything GM comes up with, I don't want within a mile of my car.
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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