first of all, to all of you that said you are getting 18-19 miles per gallon on a 04 without doing anything to the truck, i want to ask you this, are you sure you are doing the right calculations when you fill up? i meant dividing the mileage you have against the gallons you put in.(of course this is done by filling up the tank all the way and setting the trip counter to zero and when you fill up again do this calculations)
because if you are getting this kind of mileage, well i think something is wrong with my truck.
anyway i love it!!!!