Re: Road Courtesy
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A car traveling at 75 mph is burning 20% more fuel than a car running at 55 mph.
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You know this as a fact? I'm not disputing it, but that's a much higher % than I thought/would have guessed.
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Yes, this number comes from the DOE. They report a 5% drop in fuel efficiency for every 5 mph over 55 mph.
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