ENGINE DATA
Engine
4.6L V8 engine
4.6L FFV V8 engine
Cubic inches
281
281
Required fuel
87 octane
87 octane or ethanol
(E-85)
Firing order
1-3-7-2-6-5-4-8
1-3-7-2-6-5-4-8
Ignition system
Coil on plug
Coil on plug
Spark plug gap
0.052–0.056 inch
(1.32–1.42 mm)
0.041–0.047 inch
(1.04–1.20 mm)
Compression ratio
9.4:1
9.4:1
Engine drivebelt routing
Maintenance and Specifications
271
2011 Town Car
(tow)
Owners Guide, 1st Printing
USA
(fus)