Breaking-in your vehicle
Your vehicle does not need an extensive break-in. Try not to drive continuously at the same speed for the first 1,000 miles (1,600 km) of new vehicle operation. Vary your speed frequently in order to give the moving parts a chance to break in.
Drive your new vehicle at least 1,000 miles (1,600 km) before towing a trailer. For more detailed information about towing a trailer, refer to Trailer towing in the Tires, Wheels and Loading chapter.
Do not add friction modifier compounds or special break-in oils since these additives may prevent piston ring seating. See Engine oil in the Maintenance and Specifications chapter for more information on oil usage.
See also:
2007 Lincoln Navigator Review
Lincoln didn't redesign the new Navigator from the ground up, like Cadillac
did with its latest Escalade, but it sure did a number inside and out to make it
look completely different. The Navigato ...
Motorcraft part numbers
Refer to scheduled maintenance information for the appropriate
intervals for changing the spark plugs.
Note: Replace the spark plugs with ones that meet Ford material and
design specificati ...
Interior
Depending on the second-row seating configuration, the Navigator carries
either seven or eight occupants and includes a standard, 60/40-split third-row
seat. Lincoln claims it is the only manufact ...