ENGINE DATA
Engine
3.7L V6 Engine
5.0L V8 Engine
Cubic inches
227
302
Required fuel
87 octane
87 octane
Firing order
1-4-2-5-3-6
1-5-4-8-6-3-7-2
Ignition system
Coil on plug
Coil on plug
Spark plug gap
0.049–0.053 inch
(1.25-1.35 mm)
0.049–0.053 inch
(1.25–1.35 mm)
Compression ratio
10.5:1
11.0:1
For Shelby GT500 octane requirements, see the
Shelby GT500 Supplement.
Engine drivebelt routing
•
3.7L V6 engine
•
5.0L V8 engine
1. Short drivebelt is on first pulley groove closest to engine.
2. Long drivebelt is on second pulley groove farthest from engine.
1
2
1
2
Maintenance and Specifications
311
2011 05+ Mustang
(197)
Owners Guide, 1st Printing
USA
(fus)