* 4.0L Cologne V6: This is the most common engine. For this engine, you should use conventional 10W-30 oil. If you live in a very hot climate, 20W-40 might be suitable, but 10W-30 is generally recommended. You can also use a high-mileage oil formulated for older engines.
* 5.0L Windsor V8: This engine is less common. For this engine, you can also use conventional 10W-30 oil. Again, 20W-40 might be considered for extremely hot climates, but 10W-30 is a good starting point. High-mileage oil is a good option here as well.
Always check your owner's manual. This is the definitive source for your specific vehicle's oil recommendations. The manual will specify the type and weight of oil recommended by the manufacturer.
Important Considerations:
* Oil Type: While conventional oil is fine, you can use synthetic blend or full synthetic oils. Synthetics offer better performance and longevity, but they are more expensive.
* Oil Weight: The weight (e.g., 10W-30) is crucial. Using the wrong weight can damage your engine.
* API Certification: Make sure the oil meets the API (American Petroleum Institute) certification standards listed in your owner's manual.
* High-Mileage Oil: If your Explorer has high mileage, a high-mileage oil is a good idea. These oils contain additives that help seal leaks and protect aging engines.
Before changing your oil, consult your owner's manual for the exact specifications and recommended oil change intervals.