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Old 01-17-2014, 01:43 PM   #2 (permalink)
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Join Date: Sep 2010
Location: Denver, CO
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Colorado - '17 Chevrolet Colorado 4x4 LT
90 day: 23.07 mpg (US)
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To take advantage of any improved efficiency in recovering stored energy, the electrical system of the car would have to be changed. Your alternator would not work very well without a battery any more, as you cannot charge a capacitor without the voltage rising and alternator regulators are designed to maintain a constant voltage.
I'm not coasting, I'm shifting slowly.
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