Octane recommendations

Octane recommendations - What you should know about automotive fuels - Maintenance and Specifications - Lincoln MKX Owners Manual - Lincoln MKX

“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

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:

    Ignition modes
    1. Off — This position shuts the engine and all electrical accessories off. Press and release the START/STOP button without applying the brake pedal when your vehicle is in accessory or on modes ...

    Fog lamp control
    With the ignition on, the fog lamps can be turned on when the headlamp control is pulled toward you and is in any of the following positions: • Parking lamps • Low beams • Autolamps (wh ...

    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 ...