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tjts1 · 11-10-2009, 03:37 AM

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.

11-10-2009, 03:37 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.