Expedition Fuel Mileage Gains
Alright guys, I bought my wife a 2010 Expedition wit a 5.4L V-8. Everything about this vehicle is great,except the fuel mileage. (I got 15 MPG highway on vacation this past week.)I just installed a K&N air filter (not the entire cold air intake), but it has not been on long enough for me to tell a difference. I was thinking about also adding a throttle body spacer. Has anyone done this on an Expedition? Results? Good? Bad? Any?
Oh, and since it is my wife's car, I am not allowed to put a performance exhaust on it. She hates the increased volume of an after market exhaust.
Any other suggestions for increased mileage? Thanks.
Last edited by C-Dub; 08-08-2011 at 11:56 PM.