Maintenance and Specifications
ENGINE DATA
Engine
Cubic inches
Required fuel
Firing order
Ignition system
1
Spark plug gap
Compression ratio
1
Spark plug gap not adjustable
Engine drivebelt routing
• 5.4L V8 Engine
342
2008 Navigator (nav)
Owners Guide (post-2002-fmt)
USA (fus)
5.4L V8 engine
330
87 octane
1-3-7-2-6-5-4-8
Coil on plug
0.040–0.050 inch (1.02–1.27 mm)
9.85:1