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 ...

On-board diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine’s emission control system. This system is commonly known as the on-board diagnostics system (OBD-II). The OBD-II system protects t ...

Checking the engine oil
Refer to the scheduled maintenance information for the appropriate intervals for checking the engine oil. 1. Make sure the vehicle is on level ground. 2. Turn the engine off and wait 15 minutes fo ...