ok, time to put this to rest. Mileage for the 2008 ford ranger (any year with the 4.0 SOHC) is 19 highway, 15 in town. With that being said, that is under perfect conditions, no wind or grade resistance. If I factor in my engine still being brand new, were talking about 12 mpg. NOW...all you people who are claiming 20 plus...you're lying or you are mis-informed about how to calculate mileage. UNLESS, yuou have some sort of a mileage saving mod. As for the older engines, good luck acheiving 20 plus, not in your wildest dreams.
P.S., Im the guy who started this thread, and this is the information ive dug up from multiple sources, including my dealership.