[Tom Goldman]

Dave , I control mine manually,and moniter the temp in the trans pan. ......I run the fan for 5-10 min, and fire up the car and put it in gear for a min. or so to circulate the fluid. ......Temp usually drops 20-30 degrees....The smart thing to do is run the fan while the car is on the run and the return road ,as the hot fluid is circulating thru the system ,it'l keep the temp from rising as fast,and you will lower the temp quicker. ....The more fluid you have the easier it is to keep it cool. ..........Tom