FORD 2008 F-150 v.1 - Manual (Page 385)

ENGINE DATA
Engine 4.2L V6 engine 4.6L V8 engine 5.4L V8 engine
Cubic inches 256 281 330
Required fuel
87 octane 87 octane 87 octane or
Ethanol (E85)
2
Firing order 1-4-2-5-3-6 1-3-7-2-6-5-4-8 1-3-7-2-6-5-4-8
Ignition system EDIS Coil on plug Coil on plug
Spark plug gap
0.052–0.056 inch
(1.32–1.42mm) 0.052–0.056 inch
(1.32–1.42mm) 0.040–0.050 inch
(1.02–1.28mm)
1
Compression
ratio 9.3:1 9.37:1 9.85:1
1 The 5.4L 3V spark plug gap can’t be adjusted.
2 5.4L 3V FFV engines only.
Engine drivebelt routing
• 4.2L V6 Engine
2008 F-150 (f12)
Owners Guide (post-2002-fmt)
USA (fus)
Maintenance and Specifications
385