Fuel economy & running costsGasoline
#45 of 609 · Mercury cars
2009 MercuryMountaineer 4WD
Sport Utility Vehicle - 4WD · 4-Wheel or All-Wheel Drive · 4.6 L 8-cyl
16MPGcombined
14city
19highway
A year of fuel$4,200
CO₂ from the tailpipe555.4 g/mi
Figures from the EPA label (fueleconomy.gov), the same as on the car's window sticker.
Against the 609 mercury cars
Bars are scaled to the best in the list; the mark shows the list average. Lower is better for fuel cost; higher is better for the rest. All figures are the EPA's.
Summary
2009 Mercury Mountaineer 4WD by Mercury. The figures below are from US EPA fueleconomy.gov, with the page each one came from.
Details
- Model year
- 2009fueleconomy.gov · 3 Oct 2026
Efficiency
- Combined MPG
- 16fueleconomy.gov · 3 Oct 2026
- City MPG
- 14fueleconomy.gov · 3 Oct 2026
- Highway MPG
- 19fueleconomy.gov · 3 Oct 2026
Running cost
- Annual fuel cost
- $4,200fueleconomy.gov · 3 Oct 2026
- CO₂ (tailpipe)
- 555.4 g/mifueleconomy.gov · 3 Oct 2026
Car
- Body
- SUVfueleconomy.gov · 3 Oct 2026
- EPA class
- Sport Utility Vehicle - 4WDfueleconomy.gov · 3 Oct 2026
- Drive
- 4-Wheel or All-Wheel Drivefueleconomy.gov · 3 Oct 2026
Powertrain
- Engine
- 4.6 L 8-cylfueleconomy.gov · 3 Oct 2026
- Transmission
- Automatic 6-spdfueleconomy.gov · 3 Oct 2026
- Fuel
- Gasolinefueleconomy.gov · 3 Oct 2026
More mercury cars
See the list
#1 2011 · Mercury Grand Marquis FFV 19Combined MPG $3,550Fuel / year 
#2 2011 · Mercury Mariner 4WD 22Combined MPG $3,050Fuel / year #3 2011 · Mercury Mariner 4WD FFV 20Combined MPG $3,350Fuel / year #4 2011 · Mercury Mariner FWD 23Combined MPG $2,900Fuel / year #5 2011 · Mercury Mariner FWD FFV 21Combined MPG $3,200Fuel / year #6 2011 · Mercury Mariner Hybrid 4WD 29Combined MPG $2,300Fuel / year Listed on CarCody
Sources
- fueleconomy.gov/feg/noframes/26198.shtml· checked 3 Oct 2026