Waterless coolant? posted by Madhatter10-6 on February 28, 2013 at 11:44 AM
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Did this in a friends car, no pressure in the system. Most cars you will need two gallons and get the additive that cleans the coolant and takes out the water. That is the secret with it. Great part is you can reuse it as long as no water gets mixed in with. Its worth it, but make sure you clean out the system good. My $.02.