Quote:
Originally Posted by Imp
Yes, I care about gas mileage in a 455hp 8cyl.
--kC
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You might not care, but GM does. Or else skip shift and active fuel management wouldn't exist.
The spoiler might not do as much at highway speeds, but it is doing something. Every small aerodynamic improvement counts for mpg, avoiding the gas guzzler tax, and contributing to the overall CAFE average for the brand.