08-25-2011, 08:52 AM
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#9 (permalink)
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A True Z Fanatic
Join Date: Jul 2010
Location: window seat
Posts: 28,940
Drives: Mostly on two wheels
Rep Power: 121
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Quote:
Originally Posted by DaveyG
So true, I wish people would understand this. I swear I always run into people saying ac uses more gas no matter what. Either you understand physics or you don't I guess.
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It's more of a fluids question...
...but at 70 or so, most cars use about 2.5% more gas with the windows down, and 5% more with AC on, so.....
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