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.
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:
Performance
A big SUV is all about imposing looks and a muscular engine. The Navigator
has the looks part down, but the 300-horsepower V-8 engine seems woefully
lacking in the power department, especially at ...
Using speed control
The speed controls are located on the steering wheel. The following
buttons work with speed control:
RESUME: Press to resume a set
speed.
SET +: Press to increase the set
speed.
SET –: Pr ...