However, generally speaking, a 2001 Ford Taurus likely uses 5W-20 or 5W-30 conventional or synthetic motor oil. The owner's manual will specify the exact weight and whether it recommends conventional, synthetic blend, or full synthetic oil. It will also indicate the oil capacity for your engine.
Do not rely solely on this information. Always check your owner's manual for the correct oil type and capacity for your specific 2001 Ford Taurus. The wrong oil can damage your engine.