Fuel tank: 8 of 8 variants rated.
Hummer H3 5.3 V8 Luxury tops the Hummer H3 ranking by Fuel tank, at 87 L (23.0 gal US).
Across 8 ranked variants, Fuel tank spans from 87 L (23.0 gal US) to 87 L (23.0 gal US).
| # | Variant | Year | Body | Fuel | Fuel tank |
|---|---|---|---|---|---|
| 1 | Hummer H3 5.3 V8 Luxury | 2008 | SUV | Petrol | 87 L (23.0 gal US) |
| 2 | Hummer H3 3.7+1 | 2007 | SUV | Petrol | 87 L (23.0 gal US) |
| 3 | Hummer H3 3.7 Adventure+1 | 2007 | SUV | Petrol | 87 L (23.0 gal US) |
| 4 | Hummer H3 3.7 Luxury+1 | 2007 | SUV | Petrol | 87 L (23.0 gal US) |
| 5 | Hummer H3 3.5 Comfort | 2006 | SUV | Petrol | 87 L (23.0 gal US) |
| 6 | Hummer H3 3.5 Comfort | 2005 | SUV | Petrol | 87 L (23.0 gal US) |
| 7 | Hummer H3 3.5 Advantage+1 | 2005 | SUV | Petrol | 87 L (23.0 gal US) |
| 8 | Hummer H3 3.5 Executive+1 | 2005 | SUV | Petrol | 87 L (23.0 gal US) |