- Newest year: 2012
- Gas
- Two-seaters
2009-2012 Porsche Boxster MPG & Fuel Cost
4 model years · 21–24 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 7 of 10 two-seater configurations, MY2012. Ranked against all rated configurations, not sales-weighted.
2009-2012 Porsche Boxster at a glance
The 2009-2012 Porsche Boxster covers 4 model years in the EPA database (20 configurations in all), rated 21–24 MPG combined. The newest model year, 2012, costs about $3,440 a year to fuel for its most efficient version, the Boxster 2.9L 6-cyl RWD (23 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2011 and 2012; 2010 repeat the values of the year before. The best combined rating in the generation, 24 MPG, was reached in 2009 and 2010.
2009-2012 Porsche Boxster by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2012 | Gas | 21–23 MPG | $3,440–$3,740 | Ratings changed |
| 2011 | Gas | 22–23 MPG | $3,440–$3,740 | Ratings changed |
| 2010 | Gas | 22–24 MPG | $3,350–$3,650 | Same EPA ratings as 2009 |
| 2009 | Gas | 22–24 MPG | $3,350–$3,650 | First year |
What the 2012 Boxster 2.9L 6-cyl RWD 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 two-seater median
$500less a year
Class median $3,940 a year, MY2012
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2012 Porsche Boxster MPG
Versus 2011: The most efficient configuration stays at 23 MPG. Its annual cost stays at $3,440.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Boxster 2.9L 6-cyl RWD Automatic 7-spd (Most efficient) | 2.9L 6-cyl | RWD | 20 | 29 | 23 | $3,440 |
| Spyder 3.4L 6-cyl RWD Automatic 7-spd | 3.4L 6-cyl | RWD | 20 | 29 | 23 | $3,470 |
| S 3.4L 6-cyl RWD Automatic 7-spd | 3.4L 6-cyl | RWD | 20 | 29 | 23 | $3,520 |
| Spyder 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 19 | 26 | 22 | $3,690 |
| Boxster 2.9L 6-cyl RWD Manual 6-spd | 2.9L 6-cyl | RWD | 19 | 26 | 22 | $3,740 |
| S 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 19 | 26 | 21 | $3,740 |
6 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2011 Porsche Boxster MPG
22–23 MPG · $3,440–$3,740/yr
Versus 2010: The most efficient configuration moves from 24 to 23 MPG, down 1. Its annual cost goes from $3,350 to $3,440, $90 more.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Boxster 2.9L 6-cyl RWD Automatic 7-spd (Most efficient) | 2.9L 6-cyl | RWD | 20 | 29 | 23 | $3,440 |
| Spyder 3.4L 6-cyl RWD Automatic 7-spd | 3.4L 6-cyl | RWD | 20 | 29 | 23 | $3,470 |
| S 3.4L 6-cyl RWD Automatic 7-spd | 3.4L 6-cyl | RWD | 20 | 29 | 23 | $3,520 |
| Spyder 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 19 | 26 | 22 | $3,690 |
| Boxster 2.9L 6-cyl RWD Manual 6-spd | 2.9L 6-cyl | RWD | 19 | 26 | 22 | $3,740 |
| S 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 19 | 26 | 22 | $3,740 |
6 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2010 Porsche Boxster MPG
Same EPA ratings as 2009
EPA lists the same ratings for the 2010 Porsche Boxster as for the 2009 model, so the configurations and costs are the ones in the 2009 section above.See 2009
2009 Porsche Boxster MPG
22–24 MPG · $3,350–$3,650/yr
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Boxster 2.9L 6-cyl RWD Automatic 7-spd (Most efficient) | 2.9L 6-cyl | RWD | 20 | 29 | 24 | $3,350 |
| S 3.4L 6-cyl RWD Automatic 7-spd | 3.4L 6-cyl | RWD | 20 | 29 | 23 | $3,490 |
| Boxster 2.9L 6-cyl RWD Manual 6-spd | 2.9L 6-cyl | RWD | 19 | 27 | 22 | $3,650 |
| S 3.4L 6-cyl RWD Manual 6-spd | 3.4L 6-cyl | RWD | 19 | 26 | 22 | $3,650 |
4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the Boxster 2.9L 6-cyl RWD: $4,100 in California and $2,980 in Texas, a $1,120 difference.
- California $4,100
- Washington $3,860
- New York $3,400
- Florida $3,140
- Texas $2,980
Similar cars
Closest combined MPG among MY2012 two-seater models.
Generations
Frequently asked questions
What gas mileage does the 2009-2012 Porsche Boxster get?
EPA rates the 2009-2012 Porsche Boxster at 21–24 MPG combined across 20 configurations and 4 model years. The most efficient version, the 2010 Boxster 2.9L 6-cyl RWD, is rated 24 MPG (20 city, 29 highway).
Which years had the best MPG in the 2009-2012 Porsche Boxster?
The Boxster 2.9L 6-cyl RWD reached the generation's best combined rating, 24 MPG, in 2009 and 2010. The lowest top rating, 23 MPG, was in 2011 and 2012.
Did EPA ratings change during the 2009-2012 Porsche Boxster?
Yes. Ratings changed in 2011 and 2012. In 2010 the values repeat the year before.
How does the 2009-2012 Porsche Boxster compare with the previous generation?
The previous generation (2007-2008 Porsche Boxster) is rated 21–23 MPG combined and costs $3,490–$3,830 a year to fuel; the 2009-2012 model is rated 21–24 MPG and costs $3,350–$3,740 a year.
How much does it cost to fuel a 2012 Porsche Boxster per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Boxster 2.9L 6-cyl RWD costs about $3,440 a year. Across all 6 configurations the cost runs $3,440–$3,740 a year. That is a $300 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2012 Porsche Boxster 100 miles?
About $22.93 per 100 miles for the Boxster 2.9L 6-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $22.93 and $24.93 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2012 Porsche Boxster more efficient in the city or on the highway?
The Boxster 2.9L 6-cyl RWD is rated 20 city and 29 highway MPG, so it is more efficient on the highway, by 9 MPG.
How does the 2012 Porsche Boxster compare with other two-seater configurations?
The Boxster 2.9L 6-cyl RWD costs about $3,440 a year to fuel, $500 less than the class median of $3,940, and less than 7 of 10 two-seater configurations. The comparison covers all 74 rated two-seater configurations for MY2012, not weighted by sales.
Is the 2012 Porsche Boxster different from the 2011 model?
The most efficient configuration stays at 23 MPG. Its annual cost stays at $3,440. EPA lists 6 configurations for 2012 against 6 configurations for 2011. See the 2011 Porsche Boxster for that year.