2007 Ford Expedition major drop in gas mileage

2007 FORD EXPEDITION
45,000 MILES • V8 • AWD • AUTOMATIC
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BAILYSMOM
  • MEMBER
  • 1 POST
purchased new and started out at 18.5 highway. approx.15,000 miles was getting 20 to 23. almost overnight it dropped to around 16 mpg depending on wind, temperate and load.
Feb 15, 2009 at 11:15 AM
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SCHRIMPIEMAN
  • ✓ASE Certified Mechanic
  • 166 POSTS
  • ASE Certified Mechanic
Consider running an average of 3-4 fill ups and mileage driven before calculating MPG figures.

Purchase fuel from the same vendor, and purchase the same grade of fuel at each fill up. Make sure the vehicle is on level ground while at the pump. For example, if the vehicle is tilted towards the side of the filler neck, not as much fuel will be pumped into the tank, and you'll think you're getting great mileage all of a sudden.

Try to equalize as many variables as you can to get an accurate MPG figures.
Feb 21, 2009 at 7:36 PM
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