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:
Coolant refill capacity
To find out how much fluid your vehicle’s cooling system can hold, refer
to Maintenance product specifications and capacities in this chapter.
Fill your engine coolant reservoir as outlined previou ...
Chassis enhancements
To match the engine's extra power and the suspension's additional handling
capabilities, Lincoln has significantly upgraded the MKS braking system for
2013, giving the driver confidence and control. ...
Safety Compliance Certification Label
The National Highway Traffic Safety
Administration Regulations require
that a Safety Compliance
Certification Label be affixed to a
vehicle and prescribe where the
Safety Compliance Certific ...
