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Old 08-08-2013, 02:09 PM   #6 (permalink)
JRMichler
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Join Date: Feb 2011
Location: Phillips, WI
Posts: 1,018

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

22 Maverick - '22 Ford Maverick XL
90 day: 43.95 mpg (US)
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Quote:
Originally Posted by PaleMelanesian View Post
You can find out for sure by tuft-testing it with some string tied on the wiper arm. Also, if/when you put it back to the normal position you can test to see if it's even seeing direct airflow. I was surprised to find that mine are shielded, even though they look exposed.
This.

My truck is exactly the same.
__________________
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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