* Regular unleaded gasoline: This was the most common fuel type for the 2012 Fusion's engines. Specific octane recommendations varied depending on the engine.
* Some models might have required premium unleaded gasoline, depending on the specific engine option selected. The owner's manual for a particular 2012 Fusion would specify the required fuel type.
To know for sure what fuel *your* specific 2012 Ford Fusion uses, check the owner's manual or the fuel filler door.
