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ENGINE DATA

Engine 2.5L I4 engine

3.0L DOHC V6 Duratec

engine

Cubic inches 152 183

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)

0.045–0.049 inch

(1.15–1.25mm)

Compression

ratio

9.7:1 10.3:1

Engine drivebelt routing

• 2.5L I4 Engine

• 3.0L V6 Engine

2009 Mariner (mrn)

Owners Guide, 2nd Printing

USA (fus)

Maintenance and Specifications

302

Mercury 2009 Mariner User Manual

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