- Newest year: 2010
- Gas
- Standard SUVs
2006-2010 Hummer H3 MPG & Fuel Cost
5 model years · 14–16 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 3 of 10 standard SUV configurations, MY2010. Ranked against all rated configurations, not sales-weighted.
2006-2010 Hummer H3 at a glance
The 2006-2010 Hummer H3 covers 5 model years in the EPA database (13 configurations in all), rated 14–16 MPG combined. The newest model year, 2010, costs about $4,080 a year to fuel for its most efficient version, the H3 3.7L 5-cyl 4WD (16 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2007, 2008, 2009 and 2010. The best combined rating in the generation, 16 MPG, was reached in 2006, 2009 and 2010.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2006-2010 Hummer H3 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2010 | Gas | 14–16 MPG | $4,080–$4,670 | Ratings changed |
| 2009 | Gas | 14–16 MPG | $4,080–$4,670 | Ratings changed |
| 2008 | Gas | 14–15 MPG | $4,360–$4,670 | Ratings changed |
| 2007 | Gas | 15 MPG | $4,360 | Ratings changed |
| 2006 | Gas | 16 MPG | $4,080 | First year |
What the 2010 H3 3.7L 5-cyl 4WD costs to drive
Per month
$340
$4,080 a year ÷ 12
Per 25 miles
$6.80
Per 100 miles
$27.20
Five years
$20,400
5 × the yearly cost, prices held at today's level
vs the standard SUV median
$450more a year
Class median $3,630 a year, MY2010
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2010 Hummer H3 MPG
Versus 2009: The most efficient configuration stays at 16 MPG. Its annual cost stays at $4,080.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| H3 3.7L 5-cyl 4WD Automatic 4-spd (Most efficient) | 3.7L 5-cyl | 4WD | 14 | 18 | 16 | $4,080 |
| H3 3.7L 5-cyl 4WD Manual 5-spd | 3.7L 5-cyl | 4WD | 14 | 18 | 15 | $4,360 |
| H3 5.3L 8-cyl | 5.3L 8-cyl | 4WD | 13 | 16 | 14 | $4,670 |
Flex-fuel (E85) configurations are costed on gasoline, not E85.
2009 Hummer H3 MPG
14–16 MPG · $4,080–$4,670/yr
Versus 2008: The most efficient configuration moves from 15 to 16 MPG, up 1. Its annual cost goes from $4,360 to $4,080, $280 less.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| H3 3.7L 5-cyl 4WD Manual 5-spd (Most efficient) | 3.7L 5-cyl | 4WD | 14 | 18 | 16 | $4,080 |
| H3 3.7L 5-cyl 4WD Automatic 4-spd | 3.7L 5-cyl | 4WD | 14 | 18 | 16 | $4,080 |
| H3 5.3L 8-cyl | 5.3L 8-cyl | 4WD | 13 | 16 | 14 | $4,670 |
2008 Hummer H3 MPG
14–15 MPG · $4,360–$4,670/yr
Versus 2007: The most efficient configuration stays at 15 MPG. Its annual cost stays at $4,360.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| H3 3.7L 5-cyl 4WD Automatic 4-spd (Most efficient) | 3.7L 5-cyl | 4WD | 14 | 18 | 15 | $4,360 |
| H3 3.7L 5-cyl 4WD Manual 5-spd | 3.7L 5-cyl | 4WD | 13 | 18 | 15 | $4,360 |
| H3 5.3L 8-cyl | 5.3L 8-cyl | 4WD | 13 | 16 | 14 | $4,670 |
2007 Hummer H3 MPG
15 MPG · $4,360/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2006: The most efficient configuration moves from 16 to 15 MPG, down 1. Its annual cost goes from $4,080 to $4,360, $280 more.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| H3 3.7L 5-cyl 4WD Automatic 4-spd (Most efficient) | 3.7L 5-cyl | 4WD | 14 | 18 | 15 | $4,360 |
| H3 3.7L 5-cyl 4WD Manual 5-spd | 3.7L 5-cyl | 4WD | 14 | 18 | 15 | $4,360 |
2006 Hummer H3 MPG
16 MPG · $4,080/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| H3 3.5L 5-cyl 4WD Automatic 4-spd (Most efficient) | 3.5L 5-cyl | 4WD | 14 | 18 | 16 | $4,080 |
| H3 3.5L 5-cyl 4WD Manual 5-spd | 3.5L 5-cyl | 4WD | 14 | 18 | 16 | $4,080 |
Fuel cost by state
Yearly cost of the H3 3.7L 5-cyl 4WD: $5,550 in California and $3,560 in Texas, a $1,990 difference.
- California $5,550
- Washington $5,150
- New York $4,080
- Florida $3,860
- Texas $3,560
Similar cars
Closest combined MPG among MY2010 standard SUV models.
Generations
- 2006-2010 (2006)
Frequently asked questions
What gas mileage does the 2006-2010 Hummer H3 get?
EPA rates the 2006-2010 Hummer H3 at 14–16 MPG combined across 13 configurations and 5 model years. The most efficient version, the 2010 H3 3.7L 5-cyl 4WD, is rated 16 MPG (14 city, 18 highway).
Which years had the best MPG in the 2006-2010 Hummer H3?
The H3 3.7L 5-cyl 4WD reached the generation's best combined rating, 16 MPG, in 2006, 2009 and 2010. The lowest top rating, 15 MPG, was in 2007 and 2008.
Did EPA ratings change during the 2006-2010 Hummer H3?
Yes. Ratings changed in 2007, 2008, 2009 and 2010.
How much does it cost to fuel a 2010 Hummer H3 per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the H3 3.7L 5-cyl 4WD costs about $4,080 a year. Across all 3 configurations the cost runs $4,080–$4,670 a year. That is a $590 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2010 Hummer H3 100 miles?
About $27.20 per 100 miles for the H3 3.7L 5-cyl 4WD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $27.20 and $31.13 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2010 Hummer H3 more efficient in the city or on the highway?
The H3 3.7L 5-cyl 4WD is rated 14 city and 18 highway MPG, so it is more efficient on the highway, by 4 MPG.
How does the 2010 Hummer H3 compare with other standard SUV configurations?
The H3 3.7L 5-cyl 4WD costs about $4,080 a year to fuel, $450 more than the class median of $3,630, and less than 3 of 10 standard SUV configurations. The comparison covers all 301 rated standard SUV configurations for MY2010, not weighted by sales.
Is the 2010 Hummer H3 different from the 2009 model?
The most efficient configuration stays at 16 MPG. Its annual cost stays at $4,080. EPA lists 3 configurations for 2010 against 3 configurations for 2009. See the 2009 Hummer H3 for that year.