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Old 09-21-2012, 11:20 PM   #18 (permalink)
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You have to find a happy compromise between coasting and aggravating other drivers.
Use the recirculate button on your AC to save energy. Get it cool inside and then use the lowest fan speed you can tolerate with recirculate to recool the same air. This uses much less energy than fresh air which has humidity that the AC uses power to remove.
Recirculate also recools the same air over and over which is much easier than trying to cool off the hotter outside air. Better to use max temp and lower fan speeds, unless you can tolerate higher temps on lowest fan speed.

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