Had an 05 Ford with the 5.4 ,stock the milage was horrible. Changed the intake and air filter,exhaust ,and added an Edge Evolution programmer. After all this Best on hwy was 18 and avg 14 . Put a trailer on the hitch ,instant drop to 10 or less.
Got a 2010 now and stock gettin 18 on Hyw avg 15 around town.
|