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:

    Electronic stability control (ESC)
    Electronic stability control (ESC) may enhance your vehicle’s directional stability during adverse maneuvers, for example when cornering severely or avoiding objects in the roadway. ESC operates b ...

    Folding rear head restraints (if equipped)
    The outboard rear head restraints may have a folding feature. Press the button on the side of the head restraints to fold them forward. Pull the head restraints up to unfold. ...

    Anti-scan feature
    If the wrong code has been entered seven times (35 consecutive button presses), the keypad will go into an anti-scan mode. This mode disables the keypad for one minute and the keypad lamp will fla ...