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:

    Ford esp extended service plans (U.S. only)
    More than 30 million Ford and Lincoln owners have discovered the powerful protection of Ford ESP. It is the only extended service plan backed by Ford Motor Company, and provides “peace of mind” ...

    Battery
    Your vehicle is equipped with a Motorcraft maintenance-free battery which normally does not require additional water during its life of service. If your battery has a cover/shield, make sur ...

    Memory seats/power mirrors/steering column
    This system allows automatic positioning of the driver seat, power mirrors, and steering column to two programmable positions. The memory seat control is located on the driver door. • To ...