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:
2011 Lincoln MKZ Hybrid Review
The 2011 Lincoln MKZ Hybrid doesn't scream hybrid. It's not subscribing to
any earthmobile movement in any other way than its hybridness, and that's fine,
because if you want your hybrid to procla ...
Illuminated entry
The interior lamps, parking lamps and puddle lamps (if equipped)
illuminate when the IA key or the keyless entry keypad is used to unlock
the door(s).
The illuminated entry system will turn off ...
Will You Navigate?
There's nothing inherently wrong with the new Lincoln Navigator that would
make me say someone shouldn't buy one. If the looks grab you, then it makes
perfect sense. If you're remotely on the fenc ...
