The answer is that it depends. Some of our cars are converted to where the cooling fans running 100% of the time when the air conditioning is running. In warm climates or in parades I prefer this modification. The "normal" fan cycle is dependent on your otterstat swich which senses our coolant temperature. So, depending on your car and its cooling system condition the temperature may rise and fall at a different rate than another. i.e. are both fans working, is te radiator partially lugged or air flow restricted and of course ambient temperatures. Also, otterstat temperature contol is not an exact science as there is some variability in the temp. on/off in the switch itself. Cecil Longwisch #10663 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/