Owner's Manual
Page 220
... Octane recommendations Your vehicle is not recommended (particularly in the United States) because it knocks heavily under most driving conditions while you are experiencing starting, rough idle or hesitation driveability problems during a cold start, try a different brand of Regular" unleaded fuel. Premium" unleaded gasoline is designed to use regular" unleaded gasoline with...
... Octane recommendations Your vehicle is not recommended (particularly in the United States) because it knocks heavily under most driving conditions while you are experiencing starting, rough idle or hesitation driveability problems during a cold start, try a different brand of Regular" unleaded fuel. Premium" unleaded gasoline is designed to use regular" unleaded gasoline with...