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tjts1 · 11-10-2009, 02:37 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, 02:37 AM	#30 (permalink)
tjts1 Master EcoModder Join Date: Feb 2008 Location: california Posts: 1,145 Thanks: 9 Thanked 98 Times in 78 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.