2007 - 2014 Expedition & Navigator2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014 Ford Expedition and Lincoln Navigator
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Third tank on 07 w/ towing package is 15.0 average City/Highway. I got 14 on the first tank because I was "driving it like I stole it". If it gets 1 more MPG after break in, I will be happy. I also filled up, reset the MPG guage, and drove a steady 75 on a fairly flat highway. It was getting around 19.6 driving like this.
I recently changed my oil and used redline 5-20 full synthetic oil which is reported to have a fairly high molybendum content, and noticed an immediate 3/10 of a mile increase in mpg. same driving habits, same roads.
I plan on taking a trip to florida from dallas later this spring so I can better document highway miles. the 19+ some folks have posted is encouraging as I was only planning on 17 or so......
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