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Old 12-24-2019, 08:30 AM   #3 (permalink)
Master EcoModder
JRMichler's Avatar
Join Date: Feb 2011
Location: Phillips, WI
Posts: 975

Nameless - '06 GMC Canyon
90 day: 35.74 mpg (US)
Thanks: 186
Thanked 403 Times in 258 Posts
I made a front air dam on my truck mostly because the factory chin spoiler had been destroyed by hitting snowbanks, and also because I really wanted to build an air dam. It did not affect the gas mileage.

I did none of the other things on your list because of cost (lowering kit), side effects (smaller rear view mirrors, lowering), or lack of effectiveness (everything on your list except possibly rear view mirrors).

Here is the list of what I tried, and the results: You have a smaller truck and live in a warmer climate, so should be able to get better results than I got with my truck.
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.
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