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Old 01-02-2021, 04:17 PM   #10 (permalink)
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Originally Posted by COcyclist View Post
I think I will go back to setting the cruise control, leaving the car idling between runs while I make mods to hold the cruise setting in the car computer, and using the ScanGuage reset to current mpg to measure the change in aero drag.
What does this show when you do it windows up / windows down?

I also do this testing only on a dry road as I found that a road with sporadic puddles gave immediate inconsistencies in the results.
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