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Old 01-21-2017, 09:08 PM   #106 (permalink)
ThermionicScott
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Join Date: Dec 2016
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Winter Sacrifice - '96 Subaru Outback
Subaru
90 day: 25.34 mpg (US)
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Probably just a matter of time before all ICE cars get active shutters. It's a great idea for so many reasons.

(The thermostat in air-cooled Volkwagens worked similarly -- when the engine was cold, the thermostat pulled shut flaps in the fan shroud, forcing the cooling air to bypass the heads and cylinders.)
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Best tank (so far): 32 MPG
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