Mercury Mariner MPG by Year & Engine (EPA)

EPA fuel-economy ratings for every rated Mercury Mariner model year from 2005 to 2011 — each engine and transmission with its official city, highway and combined figures. Over these years the Mariner has been offered with 2.5L 4-cyl, 3.0L 6-cyl, 2.3L 4-cyl engines; the most efficient version is the 2011 (up to 32 MPG combined). All rated gas versions run on regular gasoline. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.

Mercury Mariner fuel economy by year

YearCombinedEnginesMedian used priceFor sale
2011 20–32 MPG 2.5L 4-cyl, 3.0L 6-cyl
2010 20–32 MPG 2.5L 4-cyl, 3.0L 6-cyl
2009 20–32 MPG 2.5L 4-cyl, 3.0L 6-cyl
2008 19–32 MPG 2.3L 4-cyl, 3.0L 6-cyl
2007 19–27 MPG 2.3L 4-cyl, 3.0L 6-cyl
2006 19–27 MPG 2.3L 4-cyl, 3.0L 6-cyl
2005 18–21 MPG 2.3L 4-cyl, 3.0L 6-cyl

2011 Mercury Mariner: engines & MPG

The 2011 Mariner was EPA-rated in 6 versions (2.5L 4-cyl, 3.0L 6-cyl), with combined economy from 20 to 32 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Mariner Hybrid FWD 2.5L 4-cyl Automatic (variable gear ratios) Regular 34 30 32 MPG
Mariner Hybrid 4WD 2.5L 4-cyl Automatic (variable gear ratios) Regular 30 27 29 MPG
Mariner FWD 2.5L 4-cyl Automatic 6-spd Regular 21 27 23 MPG
Mariner 4WD 2.5L 4-cyl Automatic 6-spd Regular 20 26 22 MPG
Mariner FWD FFV 3.0L 6-cyl Automatic 6-spd Regular 19 25 21 MPG
Mariner 4WD FFV 3.0L 6-cyl Automatic 6-spd Regular 18 23 20 MPG

2010 Mercury Mariner: engines & MPG

The 2010 Mariner was EPA-rated in 6 versions (2.5L 4-cyl, 3.0L 6-cyl), with combined economy from 20 to 32 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Mariner Hybrid FWD 2.5L 4-cyl Automatic (variable gear ratios) Regular 34 31 32 MPG
Mariner Hybrid 4WD 2.5L 4-cyl Automatic (variable gear ratios) Regular 30 27 29 MPG
Mariner FWD 2.5L 4-cyl Automatic 6-spd Regular 21 28 23 MPG
Mariner 4WD 2.5L 4-cyl Automatic 6-spd Regular 20 26 22 MPG
Mariner FWD FFV 3.0L 6-cyl Automatic 6-spd Regular 19 25 21 MPG
Mariner 4WD FFV 3.0L 6-cyl Automatic 6-spd Regular 18 23 20 MPG

2009 Mercury Mariner: engines & MPG

The 2009 Mariner was EPA-rated in 6 versions (2.5L 4-cyl, 3.0L 6-cyl), with combined economy from 20 to 32 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Mariner Hybrid FWD 2.5L 4-cyl Automatic (variable gear ratios) Regular 34 31 32 MPG
Mariner Hybrid 4WD 2.5L 4-cyl Automatic (variable gear ratios) Regular 29 27 28 MPG
Mariner FWD 2.5L 4-cyl Automatic 6-spd Regular 20 28 23 MPG
Mariner FWD 3.0L 6-cyl Automatic 6-spd Regular 18 26 21 MPG
Mariner 4WD 2.5L 4-cyl Automatic 6-spd Regular 19 25 21 MPG
Mariner 4WD 3.0L 6-cyl Automatic 6-spd Regular 17 24 20 MPG

2008 Mercury Mariner: engines & MPG

The 2008 Mariner was EPA-rated in 6 versions (2.3L 4-cyl, 3.0L 6-cyl), with combined economy from 19 to 32 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Mariner Hybrid FWD 2.3L 4-cyl Automatic (variable gear ratios) Regular 34 30 32 MPG
Mariner Hybrid 4WD 2.3L 4-cyl Automatic (variable gear ratios) Regular 29 27 28 MPG
Mariner FWD 2.3L 4-cyl Automatic 4-spd Regular 20 26 22 MPG
Mariner 4WD 2.3L 4-cyl Automatic 4-spd Regular 19 24 21 MPG
Mariner FWD 3.0L 6-cyl Automatic 4-spd Regular 18 24 20 MPG
Mariner 4WD 3.0L 6-cyl Automatic 4-spd Regular 17 22 19 MPG

2007 Mercury Mariner: engines & MPG

The 2007 Mariner was EPA-rated in 5 versions (2.3L 4-cyl, 3.0L 6-cyl), with combined economy from 19 to 27 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Mariner Hybrid 4WD 2.3L 4-cyl Automatic (variable gear ratios) Regular 28 27 27 MPG
Mariner FWD 2.3L 4-cyl Automatic 4-spd Regular 20 24 21 MPG
Mariner FWD 3.0L 6-cyl Automatic 4-spd Regular 18 23 20 MPG
Mariner 4WD 2.3L 4-cyl Automatic 4-spd Regular 18 23 20 MPG
Mariner 4WD 3.0L 6-cyl Automatic 4-spd Regular 17 21 19 MPG

2006 Mercury Mariner: engines & MPG

The 2006 Mariner was EPA-rated in 5 versions (2.3L 4-cyl, 3.0L 6-cyl), with combined economy from 19 to 27 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Mariner Hybrid 4WD 2.3L 4-cyl Automatic (variable gear ratios) Regular 28 26 27 MPG
Mariner FWD 2.3L 4-cyl Automatic 4-spd Regular 20 23 21 MPG
Mariner 4WD 2.3L 4-cyl Automatic 4-spd Regular 18 22 20 MPG
Mariner FWD 3.0L 6-cyl Automatic 4-spd Regular 18 23 20 MPG
Mariner 4WD 3.0L 6-cyl Automatic 4-spd Regular 17 21 19 MPG

2005 Mercury Mariner: engines & MPG

The 2005 Mariner was EPA-rated in 4 versions (2.3L 4-cyl, 3.0L 6-cyl), with combined economy from 18 to 21 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Mariner 2WD 2.3L 4-cyl Automatic 4-spd Regular 19 24 21 MPG
Mariner 4WD 2.3L 4-cyl Automatic 4-spd Regular 17 21 19 MPG
Mariner 2WD 3.0L 6-cyl Automatic 4-spd Regular 17 23 19 MPG
Mariner 4WD 3.0L 6-cyl Automatic 4-spd Regular 16 21 18 MPG

Frequently asked questions

What MPG does a Mercury Mariner get?

Depending on year and engine, EPA combined ratings for the Mariner range from 21 to 32 MPG. The most efficient rated version is the 2011 model year.

What engines does the 2011 Mercury Mariner have?

The 2011 Mariner was EPA-rated with 2.5L 4-cyl, 3.0L 6-cyl engines — see the 2011 table above for each version's exact city/highway figures.

Does the Mercury Mariner require premium gas?

No — rated versions run on regular gasoline.

Is there a hybrid or electric Mariner?

Yes — the ratings above include hybrid versions; look for them in the per-year tables.

About this data: EPA ratings from the official U.S. DOE/EPA dataset (fueleconomy.gov), as of July 2026; refreshed monthly. Market prices and listing counts are live medians from VehiSales inventory, updated daily. How to cite: “VehiSales Research, Mercury Mariner EPA Fuel Economy by Model Year” with a link to https://vehisales.com/research/fuel-economy/mercury/mariner.

See also: Mercury Mariner hub — live listings, prices & reliability · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].

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