Owner's Manual
Page 220
...regular" unleaded gasoline with an (R+M)/2 octane rating of 86 or lower in the United States) because it may cause these problems to become more pronounced. However, if it knocks heavily under most driving conditions while you are sold with octane ratings of 87. ...If the problems persist, see your engine sometimes knocks lightly. We do not recommend gasolines labeled as Regular" that are experiencing starting, rough idle or hesitation driveability problems during a cold start, try a different brand of Regular" unleaded ...
...regular" unleaded gasoline with an (R+M)/2 octane rating of 86 or lower in the United States) because it may cause these problems to become more pronounced. However, if it knocks heavily under most driving conditions while you are sold with octane ratings of 87. ...If the problems persist, see your engine sometimes knocks lightly. We do not recommend gasolines labeled as Regular" that are experiencing starting, rough idle or hesitation driveability problems during a cold start, try a different brand of Regular" unleaded ...