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:

    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 ...

    Seat-mounted cup holders and armrest storage compartment
    To access the cup holders, fold the armrest down. WARNING: Use only soft cups in the cup holder. Hard objects can injure you in a collision. ...

    Interior
    For fabric, carpets, cloth seats, safety belts and seats equipped with side airbags: • Remove dust and loose dirt with a vacuum cleaner. • Remove light stains and soil with Motorcraft Professio ...