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Is this stuff snake oil? Anyone use it? [/QB][/QUOTE]
I am trying it out right now, it will not reduce overall coolant temp, as you have a thermostat that regulates this. what it will do is transfer heat more efficiently in thise possible hot spots in the engine. This is good. I am using it because I think it will also reduce the need for SCA's, which I have to add to my coolant for cavitation erosion. The sludge some people have reported with watter wetter has not been a problem that I could find with Purple Ice. Some reported using both after the WW caused some of the precipates to fall out their coolant and the PI did not. I have no doubt it works, just don't expect to be able to see the results but it is another of those added protection things.