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Old 04-15-2018, 01:25 PM   #45 (permalink)
mpg_numbers_guy
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Join Date: Feb 2018
Location: Michigan/Virginia
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Dreamsight - '06 Honda Insight MT/AC
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Gen-1 Insights
90 day: 65.8 mpg (US)

Mom's Prius (my driving) - '08 Toyota Prius Base w/ Package 5
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I will definitely have to do coastdown/ABA testing if/when I implement this; definitely don't want to add drag to the car. But I read somewhere that the rear of the Civic sedans wasn't that good until 2006 with the release of the 8th gen with it's smoother rear end like MetroMPG had for his winter beater??

I haven't done any tuft testing (will do that before building this) but I live on a dirt road so I've gotten some semblance of an idea how the wind flows - "dirt" on the rear sides of my car tends to travel upwards onto the rear trunk; doesn't this indicate a significantly unaerodynamic rear end?

Yes I saw that post and it's honestly what I'm basing this off of mostly. Your thread has been an inspiration to me; I doubt I'll reach your 60 mpg since yours is a manual and you've done significant mechanical changes to your car, but if I can get 50 or close to that I'll be satisfied.
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-2006 red Honda Insight MT w/ AC:


Selling my 2004 Civic Sedan EX auto here.

-Averaged 46 MPG on personal driving retired automatic '04 Civic EX sedan
-Averaged 38 MPG on pizza delivery driving retired automatic '04 Civic EX sedan
-Averaged 32 MPG driving since totaled '04 Toyota Sienna (90% highway).
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