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Old 03-06-2014, 07:48 AM   #17 (permalink)
sarguy01
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Join Date: Jan 2010
Location: Virginia Beach
Posts: 468

Mazda5 - '12 Mazda 5
90 day: 25.22 mpg (US)

Big D - '11 Dodge Durango Crew
90 day: 18.75 mpg (US)
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Quote:
Originally Posted by aerohead View Post
If you were seeing 2.25 at 55 mph,then you'd be looking at about a 4.5% drag reduction to explain it.Since it's doing it at 50-mph,then the reduction is even greater,so,shooting from the hip,and considering a generic 12% drag cooling system, it looks like you've cut the cooling drag maybe by half.
So, I should be able to cut coolant drag even more by blocking the upper grill too??
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