The recommended oil type for a 1996 Ford Ranger depends on the engine it has. Ford Rangers of that year came with several different engine options. To know for sure, you need to check your owner's manual or the sticker on the engine bay (often located on the radiator support).
However, generally speaking, a 1996 Ford Ranger would likely use conventional 5W-30 or 10W-30 motor oil. But again, always consult your owner's manual for the specific weight and type recommended by Ford. Using the wrong oil can damage your engine.
