ENGINE SPECIFICATIONS
Engine 6.2L V8 engine 6.8L V10 engine
Cubic inches 378 413
Required fuelMinimum 87 octane or
Ethanol (E85)Minimum 87 octane
Firing order 1-5–4–8–6–3–7–2 1-6-5-10-2-7-3-8-4-9
Spark plug gap0.041–0.047 inch
(1.04–1.20 mm)0.039–0.043 inch
(1.0–1.1 mm)
Ignition system Coil on plug Coil on plug
Compression ratio 9.8:1 9.2:1
Engine Drivebelt Routing
6.2L V8 engine
Capacities and Specifications389
2013 F-250/350/450/550(f23)
Owners Guide gf, 3rd Printing, December 2012
USA(fus)
