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Old 06-27-2009, 08:41 AM   #2 (permalink)
stevey_frac
EcoModding Apprentice
 
Join Date: Jun 2008
Location: Cambridge, ON
Posts: 240

Jalilah - '07 Chevrolet Cobalt LT
90 day: 40.57 mpg (US)
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60 watts is about .08 hp. Even assuming the alternator is only 50% efficiency, you'd be looking at a savings of .16 hp. I think the fuel economy increase would be at the limit of your ability to detect. However, it would make a difference, and everything helps?

-Steve
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