ENGINE DATA
Engine
3.7L V6 Engine
5.0L V8 Engine
Cubic inches
227
302
Required fuel
Minimum 87 octane
Minimum 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
1. Short drivebelt is on first pulley groove closest to engine.
2. Long drivebelt is on second pulley groove farthest from engine.
•
3.7L V6 engine
1
2
Maintenance and Specifications
316
2012 05+ Mustang
(197)
Owners Guide, 3rd Printing
USA
(fus)