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:

    Coolant refill capacity
    To find out how much fluid your vehicle’s cooling system can hold, refer to Maintenance product specifications and capacities in this chapter. Fill your engine coolant reservoir as outlined previ ...

    Arming the system
    The system is ready to arm whenever the ignition is off. To arm the system, do one of the following: • Press the control on the remote entry transmitter. Note: If you press the control t ...

    Low speed automatic cancellation
    ACC is not functional at vehicle speeds below 16 mph (26 km/h). Once the vehicle speed drops below 16 mph (26 km/h), an audible alarm will sound and the automatic braking will be released. ...