Just asking - how can you say 2000 Ranger has an analog dash, when it is getting a digital signal from the rear axle and computer is converting that into speed, which is displayed on the speedometer (my '68 F100 had analog dash - cable when directly from transmission to speedometer).
2000 Ranger's electrical/electronic setup is such that the engine controls are all done by the module under the hood, so you can "strip it down" to point where you could run a carbed engine reasonably easy with the EVTM book in one hand.
I would have phrased it different in your 1st response - the O2 sensors control if the engine is running rich or not, but the skinny pedal determines a lot about fuel economy. Driving truck hard enough to want 4.88 gears, along with automatic isn't going to get you good economy.
The old F100 with a 100 gallon slip tank, mechanics tools chest, jacks, ropes, prybars, towing trailers & machinery, etc (all the crap that goes with a fam truck) wasn't hypermiling.