Octane Recommendations

Octane Recommendations  - What you should know about automotive fuels - Maintenance and Specifications - Lincoln MKZ Owners Manual - Lincoln MKZ

“Regular” unleaded gasoline with a

“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:

    Brakes
    Occasional brake noise is normal. If a metal-to-metal, continuous grinding or continuous squeal sound is present, the brake linings may be worn-out and should be inspected by an authorized dealer. ...

    Replacing front parking lamp/turn signal bulb
    For driver side replacement of the front parking lamp/turn signal bulb, do the following: WARNING: To reduce the risk of vehicle damage and/or personal burn injuries do not start your engine ...

    Unlocking the doors/two-stage unlock
    1. Press and release to unlock the driver’s door. Note: The interior lamps will illuminate. 2. Press and release again within five seconds to unlock all the doors. The remote entry system ac ...