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:

    Turning the engine off after using remote start
    • Press one time. The parking lamps will turn off. You may have to be closer to the vehicle than when starting due to ground reflection and the added noise of the running engine. You can di ...

    Adjusting the front power seat
    WARNING: Never adjust the driver’s seat or seatback when the vehicle is moving. WARNING: Do not pile cargo higher than the seatbacks to reduce the risk of injury in a collision or sudden stop. W ...

    Checking engine coolant
    The concentration and level of engine coolant should be checked at the intervals listed in scheduled maintenance information. The coolant concentration should be maintained at 50/50 coolant and di ...