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:

    Fuel pump shut-off
    In the event of a moderate to severe collision, this vehicle is equipped with a fuel pump shut-off feature that stops the flow of fuel to the engine. Not every impact will cause a shut-off. Sho ...

    Front seats
    WARNING: Reclining the seatback can cause an occupant to slide under the seat’s safety belt, resulting in severe personal injuries in the event of a collision. WARNING: Do not pile cargo higher t ...

    Opening the hood
    1. Inside the vehicle, pull the hood release handle located at the bottom of the instrument panel near the steering column. 2. Go to the front of the vehicle and release the auxiliary latch ...