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:
Improved performance without sacrificing fuel economy
Power for the 2011 Lincoln MKX is supplied by the 3.7-liter Duratec V-6,
which employs advanced technology and clever control strategies, such as Twin
Independent Variable Camshaft Timing (Ti-VCT) ...
Using speed control
The speed controls are located on the steering wheel. The following
buttons work with speed control:
SET: Press to set a speed or to
increase or decrease the set speed.
RES (Resume): Press t ...
Navigation/SYNC system hands-free control features (ifequipped)
Press to active the voice
recognition feature. Refer to Voice
recognition feature in the MyFord
Touch™ / MyLincoln Touch™
supplement.
Press to access phone features.
Refer to Phone f ...
