Fuel quality

If you are experiencing starting, rough idle or hesitation driveability problems during a cold start, try a different brand of “Regular” unleaded gasoline.
Do not add aftermarket fuel additive products to your fuel tank. It should not be necessary to add any aftermarket products to your fuel tank if you continue to use high quality fuel of the recommended octane rating. These products have not been approved for your engine and could cause damage to the fuel system. Repairs to correct the effects of using an aftermarket product in your fuel may not be covered by your warranty.
Many of the world’s automakers approved the World-Wide Fuel Charter that recommends gasoline specifications to provide improved performance and emission control system protection for your vehicle.
Gasolines that meet the World-Wide Fuel Charter should be used when available. Ask your fuel supplier about gasolines that meet the World-Wide Fuel Charter.
See also:
Engine Coolant Change Record
Engine Coolant Change Log
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Navigation system (if equipped)
Your vehicle may be equipped with a navigation system. Refer to the
Navigation System supplement for further information. ...
Safety
Rare for a new model, the MKX has completed all the major crash tests from
our preferred source, the Insurance Institute for Highway Safety. It has fared
exceptionally well, with Good scores (the ...
