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:
Interior
"We have made the new MKS interior much more inviting and engaging, with new
capacitive controls and MyLincoln Touch," said Wolff. "The previous MKS was very
linear and horizontal. No ...
Third generation
The 2007 Navigator was unveiled at the Chicago Auto Show in February 2006. It
is joined by a long wheelbase Navigator L based on the Expedition EL and shares
the new Ford T1 platform with that veh ...
Child restraint and safety belt maintenance
Inspect the vehicle safety belts and child safety seat systems periodically
to make sure they work properly and are not damaged. Inspect the
vehicle and child seat safety belts to make sure there ...
