Fuel Mileage Concern
I have a 2006 F250 with a 8" Lift and 38" Tires. The truck has 88k miles on it. I used to get between 12-15 mpg all the time. Now I am lucky to break 10 mph and am normally in the 9.5 range. This is with mostly city driving. I realize if I really baby it I can get the mileage back up to 10.5. Anyone have any ideas on what might be causing this drop in mileage. I live in Florida, havnt towed anything in the last several months. The truck has an air-raid cold air intake and custom Magnaflow ehasut. Also I have a tonneu cover. Just cant figure out what would cause the sudden loss of fuel mileage.
Is brake dragging a real problem? If so, whats the best way to check for it?