7.3 ford diesel

[Zachary Boy]

Originally Posted by Ray

I have a '99 F-250, 2WD, 3/4 ton, w/373 rear end and a Banks chip in it to get an extra 60 HP. I get 20 mpg unloaded and around 14 to 15 mpg with a 26' gooseneck and a 50 hp tractor on it.

You might want to check your air filter.

Turbochargers need a lot of airflow. I have an 06 Dodge Cummins and while towing my boat to Grand Isle, I noticed my milage dropped from the usual 18 mpg down to 11mpg. I stopped and raised the hood and saw like a little vacuum sensor that has a green, yellow red zone that indicates air filter blockage. I picked up a new filter at the Auto Zone and poof, back to 18 mpg. With all that said ,Ray is right...I might add that I spent $100 on a K & N filter that is washable and I have to clean it about every 10,000 miles so it paid for itself pretty quick...