Octane recommendations

Octane recommendations  - What you should know about automotive fuels - Maintenance and Specifications - Lincoln MKS Owners Manual - Lincoln MKS

3.7L V6 engine

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.

3.5L V6 EcoBoost engine

3.5L V6 EcoBoost engine

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. Premium fuel will provide improved performance and is recommended for severe duty usage such as trailer tow.

Do not be concerned if your engine sometimes knocks lightly. However, if it knocks heavily while you are using fuel with the recommended octane rating, see your authorized dealer to prevent any engine damage.

    See also:

    Windshield washer fluid
    Add fluid to fill the reservoir if the level is low. In very cold weather, do not fill the reservoir completely. Only use a washer fluid that meets Ford specifications. Do not use any speci ...

    Daytime running lamps (DRL) (if equipped)
    Turns the headlamps on with a reduced intensity output (halogen headlamps) or turns the front fog lamps on (HID headlamp). To activate: the ignition must be in the on position, the headlamp c ...

    Low fluid level
    Do not drive the vehicle if the fluid level does not show at all on the dipstick. Driving the vehicle with less than the recommended fluid level may result in transmission failure. An under ...