Vehicle Questions and Answers
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The 2000 Lincoln Navigator comes with a 5.4-liter V8 engine that needs 6 quarts of engine oil. The manual recommends SAE 5W-30 for best performance, but using 5W-20 if you prefer or for your specific driving environment should not cause any issues. Since the vehicle is 20 years old, using a high-mileage oil may be beneficial to reduce oil sludge buildup, improve seal tightness, and prevent leaks, though it is not mandatory.
The recommended oil for a 2000 Lincoln Navigator is 5w-20.