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:

    Side-curtain airbag system
    WARNING: Do not place objects or mount equipment on or near the headliner at the siderail that may come into contact with a deploying side air curtain. Failure to follow these instruct ...

    Replacing lost intelligent access keys (IA keys)
    If you would like to have your IA keys reprogrammed because you lost one, or would like to buy additional transmitters you can either reprogram them yourself, or take all transmitters to your auth ...

    Safety belt pretensioner
    Your vehicle is equipped with safety belt pretensioners at the driver and front outboard passenger seating positions. The safety belt pretensioner tightens the safety belts firmly against the occ ...