Originally Posted By: falcon5000
Once done, we found that even with an oil change, clean air filter and proper tire pressure, we were averaging roughly 9.4 miles to the gallon.

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And guess what? With the device on, we were now averaging 23.2 miles to the gallon. That's 61% better than the gas mileage we were previously getting.

Um, from 9.4 miles per gallon to 23.2 miles per gallon is a 61% increase?!? confused What kind of advanced math is that? My calculations show that it is more like a 147% increase.

A 61% increase to 9.4 miles per gallon is 15.1 miles per gallon, not 23.2 miles per gallon.
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“Hiking is just walking where it’s okay to pee. Sometimes old people hike by mistake.” — Demitri Martin