ENGINE DATA
Engine 4.6L V8 engine 5.4L V8 engine 6.8L V10 engine
Cubic inches 281 330 415
Required fuelMinimum
87 octane or
E85
1
Minimum
87 octane or
E85
1
Minimum
87 octane
Firing order 1-3-7-2-6-5-4-8 1-3-7-2-6-5-4-8 1-6-5-10-2-7-3-8-4-9
Ignition
systemCoilonplug Coilonplug Coilonplug
Spark plug
gap0.041–0.047 inch
(1.04–1.20 mm)0.051–0.057 inch
(1.29–1.45 mm)0.052–0.056 inch
(1.32–1.42 mm)
Compression
ratio9.38:1 9.0:1 9.0:1
14.6L V8 and 5.4L V8 FFV engines only.
Engine drivebelt routing
•4.6L V8, 5.4L V8 and 6.8L V10 engines without A/C
Maintenance and Specifications
300
2012 Econoline(eco)
Owners Guide, 1st Printing
USA(fus)
