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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.
Maintenance and Specifications
349
2012 MKS (mks)
Owners Guide, 1st Printing
USA (fus)
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