Hummer H3 MPG by Year & Engine (EPA)
EPA fuel-economy ratings for every rated Hummer H3 model year from 2006 to 2010 — each engine and transmission with its official city, highway and combined figures. Over these years the H3 has been offered with 3.7L 5-cyl, 5.3L 8-cyl, 3.5L 5-cyl power plants; the most efficient version is the 2010 (up to 16 MPG combined). All rated versions run on regular gasoline. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.
Hummer H3 fuel economy by year
| Year | Combined MPG | Engines | Median used price | For sale |
|---|---|---|---|---|
| 2010 | 14–16 | 3.7L 5-cyl, 5.3L 8-cyl | — | — |
| 2009 | 14–16 | 3.7L 5-cyl, 5.3L 8-cyl | — | — |
| 2008 | 14–15 | 3.7L 5-cyl, 5.3L 8-cyl | — | — |
| 2007 | 15 | 3.7L 5-cyl | — | — |
| 2006 | 16 | 3.5L 5-cyl | — | — |
2010 Hummer H3: engines & MPG
The 2010 H3 was EPA-rated in 3 versions (3.7L 5-cyl, 5.3L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| H3 4WD | 3.7L 5-cyl | Automatic 4-spd | Regular | 14 | 18 | 16 MPG |
| H3 4WD | 3.7L 5-cyl | Manual 5-spd | Regular | 14 | 18 | 15 MPG |
| H3 4WD | 5.3L 8-cyl | Automatic 4-spd | Regular | 13 | 16 | 14 MPG |
2009 Hummer H3: engines & MPG
The 2009 H3 was EPA-rated in 3 versions (3.7L 5-cyl, 5.3L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| H3 4WD | 3.7L 5-cyl | Automatic 4-spd | Regular | 14 | 18 | 16 MPG |
| H3 4WD | 3.7L 5-cyl | Manual 5-spd | Regular | 14 | 18 | 16 MPG |
| H3 4WD | 5.3L 8-cyl | Automatic 4-spd | Regular | 13 | 16 | 14 MPG |
2008 Hummer H3: engines & MPG
The 2008 H3 was EPA-rated in 3 versions (3.7L 5-cyl, 5.3L 8-cyl), with combined economy from 14 to 15 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| H3 4WD | 3.7L 5-cyl | Automatic 4-spd | Regular | 14 | 18 | 15 MPG |
| H3 4WD | 3.7L 5-cyl | Manual 5-spd | Regular | 13 | 18 | 15 MPG |
| H3 4WD | 5.3L 8-cyl | Automatic 4-spd | Regular | 13 | 16 | 14 MPG |
2007 Hummer H3: engines & MPG
The 2007 H3 was EPA-rated in 2 versions (3.7L 5-cyl), with combined economy of 15 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| H3 4WD | 3.7L 5-cyl | Manual 5-spd | Regular | 14 | 18 | 15 MPG |
| H3 4WD | 3.7L 5-cyl | Automatic 4-spd | Regular | 14 | 18 | 15 MPG |
2006 Hummer H3: engines & MPG
The 2006 H3 was EPA-rated in 2 versions (3.5L 5-cyl), with combined economy of 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| H3 4WD | 3.5L 5-cyl | Automatic 4-spd | Regular | 14 | 18 | 16 MPG |
| H3 4WD | 3.5L 5-cyl | Manual 5-spd | Regular | 14 | 18 | 16 MPG |
Frequently asked questions
What MPG does a Hummer H3 get?
Depending on year and engine, EPA combined economy for the H3 ranges from 14 to 16 MPG. The most efficient rated version is the 2010 model year.
What engines does the 2010 Hummer H3 have?
The 2010 H3 was EPA-rated with 3.7L 5-cyl, 5.3L 8-cyl — see the 2010 table above for each version's exact city/highway figures.
Does the Hummer H3 require premium gas?
No — rated versions run on regular.
https://vehisales.com/research/fuel-economy/hummer/h3.
Underlying ratings are public-domain EPA/DOE data from fueleconomy.gov.
See also: Hummer H3 hub — live listings, prices & reliability · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].