Octane recommendations

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

“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

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:

    Adding engine oil
    1. Check the engine oil. For instructions, refer to Checking the engine oil in this chapter. 2. If the engine oil level is not within the normal operating range, add only certified engine oil of ...

    Jump starting
    1. Start the engine of the booster vehicle and run the engine at moderately increased speed. 2. Start the engine of the disabled vehicle. 3. Once the disabled vehicle has been started, run both ...

    Vehicles sold in the U.S. : Using roadside assistance
    Complete the roadside assistance identification card and place it in your wallet for quick reference. This card is found in the Owner’s Guide portfolio in the glove compartment. U.S. Lincoln vehi ...