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Old 05-13-2018, 05:49 PM   #40 (permalink)
JRMichler
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Join Date: Feb 2011
Location: Phillips, WI
Posts: 1,013

Nameless - '06 GMC Canyon
90 day: 37.45 mpg (US)

22 Maverick - '22 Ford Maverick XL
90 day: 41.9 mpg (US)
Thanks: 188
Thanked 466 Times in 287 Posts
Update for results of the air dam that was installed 12-3-2016. Average mileage before the new air dam:
Winter 2015-2016: 31.75 MPG
Summer 2016: 38.6 MPG



Average mileage after the air dam:
Winter 2016-2017: 33.0 MPG
Summer 2017: 37.6 MPG. This summer was colder than normal.
Winter 2017-2018: 30.7 MPG. This was the coldest winter yet, and with the most headwinds. Only about 5% of the total winter miles were with a tailwind or zero wind. All other miles had headwinds.

The new air dam apparently does not affect the gas mileage. This is not a surprise because it is only slightly (about 1/2") lower than the factory chin spoiler. It has, however, survived several impacts with snowbanks without damage.
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06 Canyon: The vacuum gauge plus wheel covers helped increase summer 2015 mileage to 38.5 MPG, while summer 2016 mileage was 38.6 MPG without the wheel covers. Drove 33,021 miles 2016-2018 at 35.00 MPG.

22 Maverick: Summer 2022 burned 62.74 gallons in 3145.1 miles for 50.1 MPG. Winter 2023-2024 - 2416.7 miles, 58.66 gallons for 41 MPG.
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