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I just read the bottle. Says from 15-50% antifreeze is OK. Any value in this stuff?

Water Wetter will help in the heat transfer from the engine to the coolant and back from the coolant to the radiator. It can help make your engine run cooler. It seems to have a greater effect when used without antifreeze, but it has helped my engine run cooler with a 50/50 antifreeze mix or greater. If one chooses NOT to use antifreeze, than you need something to provide water pump seal lubrication and anti-corrosives. Water Wetter can fill that requirement, also.

RACE ON!!!