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:

    Securilock passive anti-theft system
    SecuriLock passive anti-theft system is an engine immobilization system. This system is designed to help prevent the engine from being started unless a coded integrated keyhead transmitter (IKT) ...

    Precautions when servicing your vehicle
    Do not work on a hot engine. • Make sure that nothing gets caught in moving parts. • Do not work on a vehicle with the engine running in an enclosed space, unless you are sure you have enough v ...

    Removing the jumper cables
    Remove the jumper cables in the reverse order that they were connected. Note: In the illustration, the vehicle on the bottom is used to designate the assisting (boosting) battery. 1. Remove ...