Bronze, I think it's a combo of the Water Wetter and diluting the 50-50 antifreeze with more water and less antifreeze. When I was researching using an additive to lower the temp, I read about upping the water content of a 50-50 mixture. I only have an idiot light, so I bought an infrared thermo. After going for a ride and then leaving the motor running, the temp would be around ~215-220 (taking readings around the thermostat area). After diluting the mixture and adding the wetter and doing the same thing, I get readings of ~195-200.
