2005 Mercury Mountaineer FFV 2WD

4.0L 6-cyl · 5-speed automatic · RWD

Flex-fuel (gas/E85)Gasoline or E85Sport Utility Vehicle - 2WD

Official EPA record #21509 from FuelEconomy.gov · data 2026-07-26 · every assumption below is yours to edit. How this is computed

Per month

$263.97

Per year

$3,168

Per mile

26.4¢/mi

5-year total

$15,840

sport utility body style — not this exact model

Notes & official EPA estimate

791.9 gal of fuel / yeargasoline @ $4.00/galAt $5.00/gal: $329.96/mo

A mile road trip costs about $79.20 in energy.

Running on E85: about $2,750/year at the current default price.

Official FuelEconomy.gov estimate: $4,150/year — assumes 15,000 miles/year and EPA price assumptions. The figures above use your inputs instead.

Compare with another vehiclePrices: EPA national averages, Jul 24, 2026 — override anytime.

At 12,000 miles per year (55% city / 45% highway) with EPA national-average prices ($4.00/gal regular), this 2005 Mercury Mountaineer FFV 2WD costs about $263.97 per month in fuel — $3,168 per year, 26.4¢/mi, $15,840 over five years.Assumptions are editable below. Prices as of July 24, 2026 · EPA vehicle record #21509. EPA figures are laboratory estimates; real-world cost varies with driving conditions, weather, and where you buy energy.

Official EPA efficiency

Measure	Value
City MPG	13
Highway MPG	19
Combined MPG	15
E85 MPG (city/hwy/combined)	10 / 14 / 11

Official EPA estimates

Estimate	Value
Official annual fuel cost (15,000 mi/yr)	$4,150/yr
Tailpipe CO₂	592 g/mi
EPA smog rating (BIN 9)	1/10

Source: U.S. EPA / DOE FuelEconomy.gov, vehicle record #21509 (record updated 2013-01-01). Snapshot processed 2026-07-26; page data last changed 2013-01-01.

View this record on FuelEconomy.gov

Related configurations

Same year, same family

Adjacent model years