This 1984 Ford F250 pickup truck doesn’t run on gasoline. That’s because it packs a diesel engine and is from only the second model year for the 6.9 liter I.D.I V8 engine. Steve describes how Ford and International Harvester collaborated on this superior answer to Chevrolet’s Oldsmobile-based 350 diesel engine plus a look at how its instrument panel is specifically tailored for U-Boat captains.