However, here's a general guideline, assuming you have a gasoline engine:
* Check your owner's manual: This is the most important step. The manual will specify the recommended oil viscosity (e.g., 5W-30, 10W-30) and oil type (conventional, synthetic blend, or full synthetic). The recommended viscosity will depend on your climate.
* If you don't have the manual: A good starting point for many Dodge Durangos of that era is 5W-30. This is a relatively common viscosity grade for passenger vehicles. Again, this is just a starting point; consult your owner's manual for the definitive recommendation.
* Oil type: You can use conventional, synthetic blend, or full synthetic oil. Full synthetic generally provides better protection and longer life but is more expensive. Synthetic blends offer a balance of performance and cost. Conventional oil is the most budget-friendly option. Again, your owner's manual might have a preference.
Important Considerations:
* API certification: Make sure the oil you choose meets the API (American Petroleum Institute) certification standards listed in your owner's manual. This ensures the oil meets minimum quality standards.
* Mileage: As your Durango ages, you might consider using an oil with higher viscosity (e.g., 10W-30 instead of 5W-30) to compensate for increased engine wear. However, this decision should be made in consultation with your owner's manual and/or a trusted mechanic.
In short: Find your owner's manual. That's the only reliable way to know the correct oil for your specific 2000 Dodge Durango engine. If you can't locate the manual, a local auto parts store can likely assist based on your vehicle identification number (VIN).