ENGINE DATA
Engine
3.7L V6 engine
3.5L V6 EcoBoost™
engine
Cubic inches
226
214
Fuel
See
Octane
recommendations
earlier in this chapter.
See
Octane
recommendations
earlier
in this chapter.
Firing order
1–4–2–5–3–6
1–4–2–5–3–6
Spark plug gap
0.052–0.056 inch
(1.32–1.42 mm)
0.033–0.037 inch (.84–
.94 mm)
Ignition system
Coil on plug
Coil on plug
Compression
ratio
10.3:1
10.0:1
Engine drivebelt routing
3.7L V6 engine
1. Short drivebelt is on first pulley groove closest to engine (except
vehicles with electric power assisted steering).
2. Long drivebelt is on second pulley groove farthest from engine.
3.5L V6 EcoBoost™ engine
Maintenance and Specifications
402
2012 MKT
(mkt)
Owners Guide, 1st Printing
USA
(fus)