Octane recommendations

“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 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:
Programming spare keys
You can program your own integrated keyhead transmitters or standard
SecuriLock coded keys to your vehicle. This procedure will program
both the engine immobilizer key code and the remote entry tr ...
Low fluid level
Do not drive the vehicle if the fluid
level does not show at all on the
dipstick.
Driving the vehicle with less than
the recommended fluid level may result in transmission failure. An under
...
Interior
Lincoln has taken a leap forward inside the MKS. My test vehicle was decked
out in thick, off-white leather that was wrapped around the seats and doors.
It's of decent quality, about on par with w ...
