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Old 08-17-2014, 04:00 PM   #76 (permalink)
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Join Date: Feb 2011
Location: Phillips, WI
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Nameless - '06 GMC Canyon
90 day: 37.45 mpg (US)
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Originally Posted by soulcrusher View Post
I'm sure somebody already owns a patent on this, probably a manufacturer or oil company.
No need to worry about patents, there's plenty of expired patents that you (or anybody) can copy. Here's a few:

After a patent expires, any person can legally and ethically copy it.
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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