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Published on Oct 12, 2010
http://www.hydrofuelsys.com Today is October 12, 2010. We did a complete fill-up with over 21 gallons, and found that our overall average MPG was 17.7 MPG. This is up from our baseline average of 16.67. So we are getting a gain of 1 MPG as it is now. This is good news because the last time we checked it seemed that we lost some mileage. This proves that you need to go through a whole tank and not take short trips.