Quote:
Originally Posted by Frank Lee
3 to 6% drag reduction does not equal or lead to 3-6 more mpgs or even 3-6% more mpg.
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From preliminary coast down numbers earlier this year, a 3 to 6% drag decrease would equate to a 2 to 4% decrease in fuel consumption.
At 55 mph, 66% of the overall drag was associated with air drag...
Some math...
(3 * 0.66)% - (6 * 0.66)% mpg decrease
Every little bit helps, Jim.