[krackerjack1951]

i still dont get the theory..more volume thru a hot engine,hot day,hot water thru hot radiator...100 degree ambient temp..thermostats wide open,,does not cool down a flattie..,,flattie cooling theory is the longer the water stays in the radiator,incoming air thru the radiator helps cool the water..water flow is controlled by thermostat..water gets hot,thermostats slowly open ,allows water to flow thru radiator..if water travels too fast thru radiator,very little heat transfer is accomplished..todays speed on interstate 60/70 mph doesnt make any difference..keep in mind mashing on throttle to generate more speed. bucking more wind resistance requires more fuel,which creates more heat... raise your right foot.get the vehicle back to the optimum 50 mph speed the engine was designed for..the water temp settles down to normal..dont think the water wetter.snake oil or other "stuff" is the cure all..NOT..keep this in mind,if your engine has been bored and the heads milled etc,the water traveling thru it is actually closer to the heat source in the poorly design cooling system/exhaust ...the flattie was troubled even back in the days of 50 mph..my 2 cents