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Old 12-25-2014, 02:33 AM   #2 (permalink)
2000mc
herp derp Apprentice
 
Join Date: Oct 2008
Location: Lawrence, KS
Posts: 1,049

Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

Yukon - '03 GMC Yukon Denali
90 day: 13.74 mpg (US)
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Seems like it would make the car a hair more aero... I'm thinking a solid 0.00938% improvement at a given fan speed, assuming that setting did not also automaticly allow the a/c. However, if you would have been able to select a lower fan speed due to the passive flow, when on a vent setting, I'm thinking you're losing out by.... however much power it takes to spin the fan at one level higher... maybe 0.05% loss.
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