View Single Post
Old 11-10-2009, 02:37 AM   #30 (permalink)
tjts1
Banned
 
Join Date: Feb 2008
Location: california
Posts: 1,329
Thanks: 24
Thanked 161 Times in 107 Posts
You are confusing viscous clutch with an electric or mechanical on/off fan. 2 totally different technologies. A viscous clutch fan uses some power even when it is 'disengaged'. But it's never really free of friction especially above idle.
  Reply With Quote