* Regular unleaded gasoline: This was the most common fuel type used in the 2009 Durango. Specifically, it likely required 87 octane. However, higher octane might be recommended or even required depending on the specific engine.
* Premium unleaded gasoline: Some of the higher-performance engines in the 2009 Durango may have *required* premium unleaded gasoline (higher than 87 octane). The owner's manual for the specific Durango would clearly state this if applicable.
Therefore, it's impossible to definitively say what fuel a *specific* 2009 Dodge Durango uses without knowing its engine configuration. Check the owner's manual or the fuel cap for the definitive answer.
