Pontiac Monterey MPG — Gas Mileage by Engine and Year

Quick answer

Against 446 other V6 cars rated 2003–2005, the Monterey sits right on their 18.9 mpg average.

Every Pontiac Monterey engine, compared

The Pontiac Monterey was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.

FIG.01·Pontiac Monterey gas mileage by engine
Engine	Combined	City / Highway	Years	Fuel per year
3.4L 6-cyl	19	17 / 24	2005–2005	$2,021

ROWS 1·SOURCE EPA fueleconomy.gov + ForCar

What that actually costs

FIG.02·Pontiac Monterey fuel cost
Measure	Value
Cost per mile (2005)	$0.168
Fuel per year	$2,021
Fuel over five years	$10,105
Against other V6 cars, 2003–2005	−$11 a year
EPA's own estimate	$3,300 a year

ROWS 5·SOURCE ForCar, computed from EPA ratings

City or highway — who is this car for

The 2005 Pontiac Monterey gives up 7 mpg in town: 24 on the highway against 17 in the city, $659 a year if every mile were city driving.

FIG.03·Pontiac Monterey city versus highway
Measure	Value	Reading
City (2005)	17 mpg	$2,259 a year if you only drive in town
Highway	24 mpg	$1,600 a year if you mostly commute
Gap	+7 mpg (41%)	Wide — this car dislikes traffic

ROWS 3·SOURCE EPA fueleconomy.gov + ForCar

How the Monterey changed over the years

Combined figure across the 1 model year the Monterey was rated in, all of them at 19 mpg.

FIG.04·Pontiac Monterey gas mileage by model year
Model year	Combined	City / Highway	Engines offered	Fuel per year
2005	19	17 / 24	1	$2,021

ROWS 1·SOURCE EPA fueleconomy.gov + ForCar

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How we count

This page rests on 1 EPA ratings of the Pontiac Monterey — 1 engine across 2005–2005. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $3,300. Full method.

Everything on the Pontiac Monterey

Window stickerOriginal Monroney label Decode a VINWhat each character means About this car2005–2005

Frequently asked questions

What mpg does the 2005 Pontiac Monterey get?

19 mpg combined, 17 city and 24 highway, per EPA. Across every year since 2005 the Monterey has averaged 19 mpg.

Gas mileage ratings from EPA fueleconomy.gov, unadjusted. Running cost computed by ForCar at 12,000 miles a year and $3.20 a gallon. Last updated Nov 2026. — ForCar Reviewed by Denis Kataev, founder of ForCar.

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