The owner's manual will specify the:
* Oil type: (e.g., 5W-20, 5W-30, 10W-30) This is crucial. Using the wrong viscosity can damage your engine.
* Oil certification: (e.g., API SM, SN, SP - these are standards indicating the oil's quality). This is also very important.
Without knowing the specific engine in your 2005 Dodge Durango, I cannot provide the correct oil type. Looking in your owner's manual or contacting a Dodge dealership is the only way to get a definitive answer.