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:

    Folding down the 60/40 rear seats
    Note: The head restraints should be placed in the full down position before folding the seatback down. Note: Ensure that no objects such as books, purses, or briefcases are on the floor in fron ...

    Adding engine coolant
    When adding coolant, make sure it is a 50/50 mixture of engine coolant and distilled water. Add the mixture to the coolant reservoir, when the engine is cool, until the appropriate fill level is o ...

    System check and vehicle feature customization
    Press the SETUP button repeatedly to cycle the message center through the following features: 1. OIL LIFE 2. WASHER FLUID LEVEL 3. DOOR AJAR STATUS 4. TRUNK AJAR/CLOSED 5. BLIND SPOT SY ...