

Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG | |
2009 | 4dr SUV 295-horsepower 5.3L V8 4-speed automatic AWD w/low range |
flat | light | hvy | 0 | 100 | 0 | 0 | N/A | 20.000 | |
2009 | 4dr SUV 295-horsepower 5.3L V8 4-speed automatic AWD w/low range |
flat | light | hvy | 0 | 100 | 0 | 0 | 20.0 | ||
Averages | flat | light | hvy | 0 | 100 | 0 | 0 | 20.0 | |||
With the 295-horsepower 5.3L V8 engine, 4-speed automatic transmission, and all-wheel drive w/low range, 2009 Hummer H3 fuel economy has been averaging
20.0 MPG (miles per gallon). The 2009 Hummer H3s in this analysis were driven mostly in the city (about 100 percent of the miles driven). The rest of the miles were in heavy traffic (0 percent), in the suburbs (0 percent), and on the highway at an average speed of miles per hour (0 percent). In addition the average 2009 Hummer H3 in this analysis was driven on flat terrain with a light foot and the AC on most or all of the time. |
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Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG | |
2008 | 4dr SUV 242-horsepower 3.7L I5 5-speed manual AWD w/low range |
hills | light | light | 0 | 50 | 0 | 50 | 55 | 19.500 | |
2008 | 4dr SUV 242-horsepower 3.7L I5 5-speed manual AWD w/low range |
hills | light | light | 0 | 50 | 0 | 50 | 55 | 19.5 | |
Averages | hills | light | light | 0 | 50 | 0 | 50 | 55 | 19.5 | ||
With the 242-horsepower 3.7L I5 engine, 5-speed manual transmission, and all-wheel drive w/low range, the 2008 Hummer H3 has been averaging
19.5 MPG (miles per gallon). The 2008 Hummer H3s in this analysis were driven mostly in the city (about 50 percent of the miles driven). The rest of the miles were on the highway at an average speed of 55 miles per hour (50 percent), in heavy traffic (0 percent), and in the suburbs (0 percent). In addition the average 2008 Hummer H3 in this analysis was driven on hilly terrain with a light foot and the AC on only some of the time. |
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Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG | |
2008 | 4dr SUV 242-horsepower 3.7L I5 4-speed automatic AWD w/low range |
flat | med | none | 10 | 30 | 30 | 30 | 70 | 15.800 | |
flat | light | none | 0 | 20 | 0 | 80 | 65 | 16.700 | |||
hills | light | none | 0 | 100 | 0 | 0 | N/A | 16.447 | |||
flat | light | light | 0 | 30 | 30 | 40 | 60 | 16.500 | |||
hills | light | none | 0 | 100 | 0 | 0 | N/A | 17.253 | |||
2008 | 4dr SUV 242-horsepower 3.7L I5 4-speed automatic AWD w/low range |
flat | light | none | 2 | 56 | 12 | 30 | 65 | 16.5 | |
Averages | flat | light | none | 2 | 56 | 12 | 30 | 65 | 16.5 | ||
With the 242-horsepower 3.7L I5 engine, 4-speed automatic transmission, and all-wheel drive w/low range, 2008 Hummer H3 gas mileage has been averaging
16.5 MPG (miles per gallon). The 2008 Hummer H3s in this analysis were driven mostly in the city (about 56 percent of the miles driven). The rest of the miles were on the highway at an average speed of 65 miles per hour (30 percent), in the suburbs (12 percent), and in heavy traffic (2 percent). In addition the average 2008 Hummer H3 in this analysis was driven on flat terrain with a light foot and the AC not used at all. |
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Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG | |
2007 | 4dr SUV 242-horsepower 3.7L I5 5-speed manual AWD w/low range |
hills | med | hvy | 11 | 11 | 22 | 56 | 70 | 18.000 | |
flat | light | none | 22 | 22 | 25 | 30 | 60 | 18.000 | |||
2007 | 4dr SUV 242-horsepower 3.7L I5 5-speed manual AWD w/low range |
hills | med | light | 17 | 17 | 24 | 43 | 65 | 18.0 | |
Averages | hills | med | light | 17 | 17 | 24 | 43 | 65 | 18.0 | ||
With the 242-horsepower 3.7L I5 engine, 5-speed manual transmission, and all-wheel drive w/low range, 2007 Hummer H3 fuel economy has been averaging
18.0 MPG (miles per gallon). The 2007 Hummer H3s in this analysis were driven mostly on the highway at an average speed of 65 miles per hour (about 43 percent of the miles driven). The rest of the miles were in the suburbs (24 percent), in heavy traffic (17 percent), and in the city (17 percent). In addition the average 2007 Hummer H3 in this analysis was driven on hilly terrain with a medium foot and the AC on only some of the time. |
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Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG | |
2007 | 4dr SUV 242-horsepower 3.7L I5 4-speed automatic AWD w/low range |
flat | med | hvy | 30 | 20 | 20 | 30 | 60 | 15.400 | |
flat | med | hvy | 30 | 20 | 20 | 30 | 60 | 15.800 | |||
hills | light | light | 5 | 20 | 50 | 25 | 60 | 15.000 | |||
flat | light | light | 3 | 7 | 90 | 0 | N/A | 15.000 | |||
hills | light | none | 5 | 20 | 50 | 25 | 60 | 15.000 | |||
flat | v.lt | none | 18 | 21 | 25 | 36 | 60 | 19.800 | |||
flat | med | none | 20 | 80 | 0 | 0 | N/A | 14.800 | |||
2007 | 4dr SUV 242-horsepower 3.7L I5 4-speed automatic AWD w/low range |
flat | light | light | 16 | 27 | 36 | 21 | 60 | 15.8 | |
Averages | flat | light | light | 16 | 27 | 36 | 21 | 60 | 15.8 | ||
With the 242-horsepower 3.7L I5 engine, 4-speed automatic transmission, and all-wheel drive w/low range, the 2007 Hummer H3 has been averaging
15.8 MPG (miles per gallon). The 2007 Hummer H3s in this analysis were driven mostly in the suburbs (about 36 percent of the miles driven). The rest of the miles were in the city (27 percent), on the highway at an average speed of 60 miles per hour (21 percent), and in heavy traffic (16 percent). In addition the average 2007 Hummer H3 in this analysis was driven on flat terrain with a light foot and the AC on only some of the time. |
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Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG | |
2006 | 4dr SUV 220-horsepower 3.5L I5 5-speed manual AWD w/low range |
flat | med | light | 0 | 60 | 0 | 40 | 75 | 15.000 | |
flat | med | none | 0 | 10 | 0 | 90 | 75 | 16.000 | |||
flat | med | light | 0 | 95 | 0 | 5 | 75 | 15.000 | |||
flat | light | none | 0 | 50 | 0 | 50 | 60 | 17.000 | |||
flat | light | none | 0 | 100 | 0 | 0 | N/A | 15.000 | |||
flat | med | none | 5 | 10 | 70 | 15 | 60 | 19.000 | |||
hills | med | none | 0 | 15 | 38 | 46 | 60 | 17.000 | |||
hills | med | light | 2 | 11 | 53 | 35 | 60 | 17.000 | |||
flat | med | light | 0 | 10 | 0 | 90 | 75 | 16.000 | |||
hills | med | light | 2 | 18 | 60 | 20 | 60 | 18.000 | |||
flat | light | none | 9 | 5 | 4 | 82 | 75 | 14.947 | |||
flat | med | light | 0 | 10 | 0 | 90 | 75 | 17.000 | |||
mtns | med | light | 10 | 10 | 10 | 70 | 70 | 18.500 | |||
2006 | 4dr SUV 220-horsepower 3.5L I5 5-speed manual AWD w/low range |
flat | med | none | 2 | 31 | 18 | 49 | 68 | 16.6 | |
Averages | flat | med | none | 2 | 31 | 18 | 49 | 68 | 16.6 | ||
With the 242-horsepower 3.7L I5 engine, 5-speed manual transmission, and all-wheel drive w/low range, 2006 Hummer H3 gas mileage has been averaging
16.6 MPG (miles per gallon). The 2006 Hummer H3s in this analysis were driven mostly on the highway at an average speed of 68 miles per hour (about 49 percent of the miles driven). The rest of the miles were in the city (31 percent), in the suburbs (18 percent), and in heavy traffic (2 percent). In addition the average 2006 Hummer H3 in this analysis was driven on flat terrain with a medium foot and the AC not used at all. |
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Year | Body/Powertrain | flat, hilly, or mountainousLand | driving style: very light to "lead foot"Foot | A/C use: none to heavyA/C | constant stop and goTraf % | many stops per mileCity % | stop every mile or twoSub % | fairly steady speedHwy % | Hwy Spd | MPG | |
2006 | 4dr SUV 220-horsepower 3.5L I5 4-speed automatic AWD w/low range |
flat | light | light | 5 | 10 | 10 | 75 | 60 | 18.000 | |
flat | med | light | 5 | 10 | 20 | 65 | 75 | 17.000 | |||
flat | light | light | 0 | 0 | 100 | 0 | N/A | 16.000 | |||
hills | lead | light | 10 | 10 | 40 | 40 | 55 | 17.200 | |||
flat | light | hvy | 0 | 20 | 10 | 70 | 60 | 15.000 | |||
flat | light | light | 2 | 0 | 1 | 97 | 65 | 17.143 | |||
mtns | med | hvy | 0 | 4 | 0 | 96 | 75 | 17.100 | |||
flat | med | hvy | 0 | 9 | 0 | 91 | 75 | 17.900 | |||
hills | med | light | 0 | 4 | 0 | 96 | 70 | 17.400 | |||
hills | light | none | 25 | 25 | 10 | 40 | 65 | 15.427 | |||
flat | light | light | 22 | 22 | 17 | 39 | 65 | 16.497 | |||
hills | med | none | 5 | 15 | 5 | 75 | 65 | 15.957 | |||
hills | med | hvy | 0 | 10 | 5 | 85 | 65 | 18.793 | |||
hills | med | hvy | 0 | 10 | 5 | 85 | 65 | 18.478 | |||
flat | med | light | 0 | 100 | 0 | 0 | N/A | 15.200 | |||
flat | med | light | 20 | 60 | 10 | 10 | 70 | 13.000 | |||
flat | light | light | 5 | 0 | 15 | 80 | 60 | 17.800 | |||
flat | light | light | 0 | 90 | 0 | 10 | 70 | 14.800 | |||
flat | light | none | 0 | 0 | 0 | 100 | 70 | 15.700 | |||
flat | light | hvy | 5 | 0 | 15 | 80 | 65 | 16.000 | |||
hills | light | hvy | 0 | 20 | 10 | 70 | 60 | 14.194 | |||
hills | med | light | 35 | 15 | 25 | 25 | 75 | 17.016 | |||
hills | med | none | 35 | 15 | 25 | 25 | 75 | 16.995 | |||
hills | med | none | 35 | 15 | 25 | 25 | 75 | 17.100 | |||
flat | light | hvy | 47 | 2 | 47 | 5 | 75 | 14.000 | |||
2006 | 4dr SUV 220-horsepower 3.5L I5 4-speed automatic AWD w/low range |
flat | med | light | 10 | 19 | 16 | 55 | 68 | 16.4 | |
Averages | flat | med | light | 10 | 19 | 16 | 55 | 68 | 16.4 | ||
With the 242-horsepower 3.7L I5 engine, 4-speed automatic transmission, and all-wheel drive w/low range, 2006 Hummer H3 fuel economy has been averaging
16.4 MPG (miles per gallon). The 2006 Hummer H3s in this analysis were driven mostly on the highway at an average speed of 68 miles per hour (about 55 percent of the miles driven). The rest of the miles were in the city (19 percent), in the suburbs (16 percent), and in heavy traffic (10 percent). In addition the average 2006 Hummer H3 in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time. |
What Our Members Are Saying about the Real Gas Mileage of the 2006 Hummer H3
4-speed automatic AWD w/low range
4-speed automatic AWD w/low range
Hummer H3 Gas Mileage (MPG)
Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Hummer H3's real-world MPG based on how and where you drive a car.