The Hummer H2's gas tank is 32.0 gallons.
Larger sized gas tanks are advantageous because you don't need to go to the gas station as often. Also, you can take advantage of days when gas prices are discounted and fill up your vehicle with a larger quantity of gas.
Scroll down for the gas tank size tables for your year and trim.
| Year | Trim | Engine | Gallons | Liters |
|---|---|---|---|---|
| 2009 | V8 SUV 4D 4WD | VORTEC 6.2L | 32.0 | 121.1 |
| 2009 | V8 SUV 4D Adventure 4WD | VORTEC 6.2L | 32.0 | 121.1 |
| 2009 | V8 SUV 4D Luxury 4WD | VORTEC 6.2L | 32.0 | 121.1 |
| 2009 | V8 SUV SUT 4D 4WD | VORTEC 6.2L | 32.0 | 121.1 |
| 2009 | V8 SUV SUT 4D Adventure 4WD | VORTEC 6.2L | 32.0 | 121.1 |
| 2009 | V8 SUV SUT Luxury 4WD | VORTEC 6.2L | 32.0 | 121.1 |
| Year | Trim | Engine | Gallons | Liters |
|---|---|---|---|---|
| 2008 | V8 4WD SUV 4D | VORTEC 6.2L | 32.0 | 121.1 |
| 2008 | V8 4WD SUV 4D Adventure | VORTEC 6.2L | 32.0 | 121.1 |
| 2008 | V8 4WD SUV 4D Luxury | VORTEC 6.2L | 32.0 | 121.1 |
| 2008 | V8 4WD SUV SUT 4D | VORTEC 6.2L | 32.0 | 121.1 |
| 2008 | V8 4WD SUV SUT 4D Adventure | VORTEC 6.2L | 32.0 | 121.1 |
| 2008 | V8 4WD SUV SUT Luxury | VORTEC 6.2L | 32.0 | 121.1 |
| 2007 | V8 4WD SUV 4D | VORTEC 6.0L | 32.0 | 121.1 |
| 2007 | V8 4WD SUV 4D Adventure | VORTEC 6.0L | 32.0 | 121.1 |
| 2007 | V8 4WD SUV 4D Luxury | VORTEC 6.0L | 32.0 | 121.1 |
| 2007 | V8 4WD SUV SUT 4D | VORTEC 6.0L | 32.0 | 121.1 |
| 2007 | V8 4WD SUV SUT 4D Adventure | VORTEC 6.0L | 32.0 | 121.1 |
| 2007 | V8 4WD SUV SUT Luxury | VORTEC 6.0L | 32.0 | 121.1 |
| Year | Trim | Engine | Gallons | Liters |
|---|---|---|---|---|
| 2006 | V8 4WD SUV 4D | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2006 | V8 4WD SUV 4D Adventure | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2006 | V8 4WD SUV 4D Luxury | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2006 | V8 4WD SUV SUT 4D | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2006 | V8 4WD SUV SUT 4D Adventure | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2006 | V8 4WD SUV SUT Luxury | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2005 | V8 4WD SUV 4D | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2005 | V8 4WD SUV 4D Adventure | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2005 | V8 4WD SUV 4D Luxury | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2005 | V8 4WD SUV SUT 4D | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2005 | V8 4WD SUV SUT 4D Adventure | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| 2005 | V8 4WD SUV SUT Luxury | VORTEC 6000 V8 SFI (325 HP [242.45 KW] @ 5200 RPM, 365L | 32.0 | 121.1 |
| Year | Trim | Engine | Gallons | Liters |
|---|---|---|---|---|
| 2004 | V8 4WD SUV 4D | VORTEC 6000 V8 SFI (316 HP [235.7 KW] @ 5200 RPM, 360L | 32.0 | 121.1 |
| 2004 | V8 4WD SUV 4D Adventure | VORTEC 6000 V8 SFI (316 HP [235.7 KW] @ 5200 RPM, 360L | 32.0 | 121.1 |
| 2004 | V8 4WD SUV 4D Luxury | VORTEC 6000 V8 SFI (316 HP [235.7 KW] @ 5200 RPM, 360L | 32.0 | 121.1 |
| 2003 | V8 4WD SUV 4D | Not Available | 32.0 | 121.1 |
| 2003 | V8 4WD SUV 4D Adventure | Not Available | 32.0 | 121.1 |
| 2003 | V8 4WD SUV 4D Luxury | Not Available | 32.0 | 121.1 |
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