E46Fanatics - View Single Post - E46 Block Heater Install
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Old 01-22-2009, 11:14 AM   #75
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Join Date: Nov 2007
Location: LSI
Posts: 397
My Ride: Z8
If it warmed up the coolant, then the coolant temp needle would not be at the bottom of the blue indicator...at least somewhat above it.

I am sure indirectly heat is being passed around from the block to whatever it can be passed on to...but mostly to oil.
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