2009 Mercury Mountaineer Specs

4 powertrain configurations on federal record for the 2009 Mercury Mountaineer: 4.0L 6-cyl Regular Gasoline; 4.6L 8-cyl Regular Gasoline, in Rear-Wheel Drive and 4-Wheel or All-Wheel Drive, rated up to 17 MPG combined by the EPA.

Source: EPA federal records (fueleconomy.gov) · Updated 2026-10-26 · By CarWhere Research

2009 Mercury Mountaineer engines, transmissions, drivetrains and EPA gas mileage
Engine	Transmission	Drivetrain	City	Highway	Combined
4.0L 6-cyl Regular Gasoline	Automatic 5-spd	Rear-Wheel Drive	14	20	16
4.6L 8-cyl Regular Gasoline	Automatic 6-spd	Rear-Wheel Drive	15	21	17
4.0L 6-cyl Regular Gasoline	Automatic 5-spd	4-Wheel or All-Wheel Drive	13	19	15
4.6L 8-cyl Regular Gasoline	Automatic 6-spd	4-Wheel or All-Wheel Drive	14	19	16

Mountaineer by year

2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997

Buying a used Mountaineer? Specs are the easy half.

then check the specific car: the Full VIN Report shows that VIN's factory build, recall record, and market history before you pay for it.

Frequently asked questions

What engines does the 2009 Mercury Mountaineer have?

2 engines on federal record: 4.0L 6-cyl Regular Gasoline; 4.6L 8-cyl Regular Gasoline, offered with Automatic 5-spd, Automatic 6-spd and Rear-Wheel Drive or 4-Wheel or All-Wheel Drive. The full per-configuration table is above.

What gas mileage does the 2009 Mercury Mountaineer get?

EPA combined ratings run 15–17 MPG depending on configuration — the table above shows city/highway/combined for each engine, transmission, and drivetrain.

How do I get the specs for my exact VIN?

These are the federal-record configurations for the 2009 Mercury Mountaineer overall. For one specific vehicle — its exact engine, trim, factory options, and original window sticker — decode the 17-character VIN free at carwhere.com/tools/vin-decoder.

Where does this data come from?

The U.S. EPA's public vehicle dataset (fueleconomy.gov) — the federal record of every US-market configuration since 1984 — refreshed 2026-10-26. Public-domain data; republish with attribution to CarWhere (carwhere.com).