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ENGINE DATA
Engine 2.3L I4 engine 3.0L DOHC V6
Duratec engine
Cubic inches 140 183
Required fuel 87 octane 87 octane
Firing order 1-3-4-2 1-4-2-5-3-6
Ignition system Coil on plug Coil on plug
Spark plug gap 0.049–0.053 inch
(1.25–1.35mm)
0.052–0.056 inch
(1.32–1.42mm)
Compression ratio 9.7:1 10.0:1
Engine drivebelt routing
• 2.3L I4 Engine with A/C—Without A/C similar
• 3.0L V6 Engine
2008 Mariner (mrn)
Owners Guide (post-2002-fmt)
USA (fus)
Maintenance and Specifications
288
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