prestone peak and all those aitn freezes dont do anything to cool your motor... they are just as the name says, anti freezes. they make the water resistant to cold temps so you dont have a block of ice inside your radiator and casue it to rip open once the fliud expands. think of it like a soda bottle.. you freeze it and its fine but as soon as you thaw it out it will bust out the bottle when it starts expanding..
if you want to properly cool your motor get a bottle of either engine ice, or buy a gallon of distilled water and a thing of redline watter wetter and mix some up... i like the watter wetter you can make many gallons of it for the price of 1 gallon of engine ice.