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:
Overview
Lincoln MKT full-size crossover offers a dramatically improved ride, sharper
handling, better fuel economy and new safety technologies including rear
inflatable seat belts for the 2013 model year, p ...
Lincoln drive control
Three distinct driving modes - Sport, Normal and Comfort - are easy to select
using the MKT's new Lincoln Drive Control and the shift lever.
"The new system coordinates the performance of mult ...
Reducing speed while using speed control
To reduce a set speed:
• Press and hold SET – until you get to the desired speed, then release.
You can also use SET – to operate the tap-down function. Press and
release SET – to decrease the ...
