Octane recommendations

“Regular” unleaded gasoline with a pump (R+M)/2 octane rating of 87 is recommended. Some stations offer fuels posted as “Regular” with an octane rating below 87, particularly in high altitude areas. Fuels with octane levels below 87 are not recommended.

Do not be concerned if your engine sometimes knocks lightly. However, if it knocks heavily under most driving conditions while you are using fuel with the recommended octane rating, see your authorized dealer to prevent any engine damage.
See also:
SENSE AND STYLE
Family Friendly (Not Really, Fair, Great, Excellent): Fair
Fun-Factor (None, Some, Good Times, Groove-On): None ...
Readiness for Inspection/Maintenance (I/M) testing
Some state/provincial and local governments may have
Inspection/Maintenance (I/M) programs to inspect the emission control
equipment on your vehicle. Failure to pass this inspection could prevent ...
Aluminum wheels and wheel covers
Aluminum wheels and wheel covers are coated with a clear coat paint
finish. In order to maintain their shine:
• Clean weekly with Motorcraft Wheel and Tire Cleaner, which is
available from your ...
