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:

    Engine shield
    Some vehicles may be equipped with an aero-shield under the engine. This shield needs to be removed for service, including oil and filter changes. It is secured with four quick release fastener ...

    Deactivating/activating autounlock feature
    Your vehicle comes with the autounlock features activated; there are four methods to enable/disable this feature: • Through your authorized dealer, • by using a power door unlock/lock sequence, or ...

    Brakes
    Occasional brake noise is normal. If a metal-to-metal, continuous grinding or continuous squeal sound is present, the brake linings may be worn-out and should be inspected by an authorized dealer. ...