- Newest year: 2005
- Gas
- Minivans
2005 Pontiac Monterey MPG & Fuel Cost
1 configuration · 19 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 6 of 10 minivan configurations, MY2005. Ranked against all rated configurations, not sales-weighted.
2005 Pontiac Monterey at a glance
The 2005 Pontiac Monterey has 1 configuration in the EPA database, rated 19 MPG combined. The most efficient is the Wagon 3.4L 6-cyl FWD at 19 MPG, which costs about $3,440 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The Wagon 3.4L 6-cyl FWD costs less to fuel than 6 of 10 minivan configurations rated for MY2005 (class median $3,630 a year).
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
What the 2005 Wagon 3.4L 6-cyl FWD costs to drive
Per month
$287
$3,440 a year ÷ 12
Per 25 miles
$5.73
Per 100 miles
$22.93
Five years
$17,200
5 × the yearly cost, prices held at today's level
vs the minivan median
$190less a year
Class median $3,630 a year, MY2005
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2005 Pontiac Monterey MPG
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Wagon (Most efficient) | 3.4L 6-cyl | FWD | 17 | 24 | 19 | $3,440 |
Fuel cost by state
Yearly cost of the Wagon 3.4L 6-cyl FWD: $4,680 in California and $3,000 in Texas, a $1,680 difference.
- California $4,680
- Washington $4,330
- New York $3,440
- Florida $3,250
- Texas $3,000
Similar cars
Closest combined MPG among MY2005 minivan models.
Generations
- 2005
Frequently asked questions
What gas mileage does the 2005 Pontiac Monterey get?
EPA rates the 2005 Pontiac Monterey at 19 MPG combined across 1 configuration. The most efficient, the Wagon 3.4L 6-cyl FWD, is rated 19 MPG combined (17 city / 24 highway).
How much does it cost to fuel a 2005 Pontiac Monterey per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the Wagon 3.4L 6-cyl FWD costs about $3,440 a year. Across all 1 configuration the cost runs $3,440 a year.
How much does it cost to drive a 2005 Pontiac Monterey 100 miles?
About $22.93 per 100 miles for the Wagon 3.4L 6-cyl FWD at regular gasoline $4.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.
Is the 2005 Pontiac Monterey more efficient in the city or on the highway?
The Wagon 3.4L 6-cyl FWD is rated 17 city and 24 highway MPG, so it is more efficient on the highway, by 7 MPG.
How does the 2005 Pontiac Monterey compare with other minivan configurations?
The Wagon 3.4L 6-cyl FWD costs about $3,440 a year to fuel, $190 less than the class median of $3,630, and less than 6 of 10 minivan configurations. The comparison covers all 30 rated minivan configurations for MY2005, not weighted by sales.