2004 Ford F150 Owner Guide 5th Printing - Page 282

Maintenance and Specifications Some transmission fluids may be labeled as dual usage, such as MERCON௡ and MERCON௡ V. These dual usage fluids are not to be used in an automatic transmission that requires use of the MERCON௡ type fluid. However, these dual usage fluids may be used in transmissions that require the MERCON௡ V type fluid. MERCON௡ and MERCON௡ V type fluids are not interchangeable. DO NOT mix MERCON௡ and MERCON௡ V. Use of a transmission fluid that indicates dual usage (MERCON௡ and MERCON௡ V) in an automatic transmission application requiring MERCON௡ may cause transmission damage. Use of any fluid other than the recommended fluid may cause transmission damage. ENGINE DATA Engine Cubic inches Required fuel Firing order Ignition system Compression ratio 1 4.6L V8 engine 281 87 octane 1-3-7-2-6-5-4-8 Coil on plug 9.37:1 5.4L V8 engine 330 87 octane 1-3-7-2-6-5-4-8 Coil on plug 9.85:1 The 5.4L 3V spark plug gap CANNOT be adjusted. 282 2004 F150 (f12) Owners Guide (post-2002-fmt) USA English (fus)