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Hummer H3 Fuel Economy (MPG)

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Hummer H3 Hummer H3 2009 20.0 MPG Highway Percentage 0 percent
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.
 
Hummer H3 Hummer H3 2008 19.5 MPG Highway Percentage 50 percent
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.
 
Hummer H3 Hummer H3 2008 16.5 MPG Highway Percentage 30 percent
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.
 
Hummer H3 Hummer H3 2007 18.0 MPG Highway Percentage 43 percent
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.
 
Hummer H3 Hummer H3 2007 15.8 MPG Highway Percentage 21 percent
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 none 5 20 50 25 60 15.000
  flat light light 3 7 90 0 N/A 15.000
  hills light light 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.
 
Hummer H3 Hummer H3 2006 16.6 MPG Highway Percentage 49 percent
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.
 
Hummer H3 Hummer H3 2006 16.4 MPG Highway Percentage 55 percent
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
  hills light hvy 0 20 10 70 60 14.194
  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
  flat light hvy 0 20 10 70 60 15.000
  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.

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What Our Members Are Saying about the Real Gas Mileage of the 2006 Hummer H3

2006 Hummer H3 Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr SUV 220-horsepower 3.5L I5
4-speed automatic AWD w/low range
It could be better... Why no medium-duty diesel?
2006 4dr SUV 220-horsepower 3.5L I5
4-speed automatic AWD w/low range
I knew what I was getting into when I bought it. But come on, 14.8mg on the freeway? I would have bought an H2 if I knew that was going to happen. You have to drive like a grandpa to achieve 17mpg. i.e. - under 65 on the freeway.
 

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.