That works but I did one better.. Bought an automotive aftermarket fan controller with probe, thats adjustable from 130 degress to 220 degrees .. I have it set at 160* to come on, 140* to turn off ... Engine warms up in cold weather.. we had 15 degrees here this year.. worked just fine ..AND I no longer have any overheating issues no matter how hard I run it or how hot a day it is..