Ford 2005 F-150 Owner's Manual page 260

Maintenance and Specifications
4. Open the hood. Protect yourself from engine heat.
• 4.2L V6 engine
MIN MAX
• 4.6L/5.4L V8 engine
5. Locate and carefully remove the engine oil level indicator (dipstick).
260
2005 F-150 (f12)
Owners Guide (post-2002-fmt)
USA (fus)