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Hummer H3 vs. Chevrolet TrailBlazer MPG

Chart is based on 54 fuel economy reports for the Hummer H3 and 99 fuel economy reports for the Chevrolet TrailBlazer.

Hummer H3 MPG

Hummer H3 Hummer H3 2009 20.0 MPG Highway Percentage 0 percent Hummer H3 Hummer H3 2008 19.5 MPG Highway Percentage 50 percent Hummer H3 Hummer H3 2008 16.5 MPG Highway Percentage 30 percent Hummer H3 Hummer H3 2007 18.0 MPG Highway Percentage 43 percent Hummer H3 Hummer H3 2007 15.8 MPG Highway Percentage 21 percent Hummer H3 Hummer H3 2006 16.6 MPG Highway Percentage 49 percent 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
2009 4dr SUV 295-horsepower 5.3L V8
4-speed automatic AWD w/low range
flat light hvy 0 100 0 0 20.0  
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  
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  
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  
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  
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  
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  

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This page shows only averages. See all the Hummer H3 fuel economy data.

Chevrolet TrailBlazer MPG

Chevrolet TrailBlazer Chevrolet TrailBlazer 2008 19.3 MPG Highway Percentage 50 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2008 17.9 MPG Highway Percentage 59 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2007 14.2 MPG Highway Percentage 47 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2007 18.7 MPG Highway Percentage 68 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2006 15.6 MPG Highway Percentage 72 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2006 14.0 MPG Highway Percentage 8 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2006 15.3 MPG Highway Percentage 56 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2006 19.5 MPG Highway Percentage 65 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2006 18.5 MPG Highway Percentage 53 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2005 18.0 MPG Highway Percentage 45 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2005 16.5 MPG Highway Percentage 15 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2004 17.2 MPG Highway Percentage 60 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2004 17.3 MPG Highway Percentage 64 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2003 16.0 MPG Highway Percentage 50 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2003 18.8 MPG Highway Percentage 45 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2003 18.8 MPG Highway Percentage 53 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2002 16.5 MPG Highway Percentage 10 percent Chevrolet TrailBlazer Chevrolet TrailBlazer 2002 17.6 MPG Highway Percentage 64 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 285-horsepower 4.2L I6
4-speed automatic RWD
hills med light 3 45 3 50 110 19.3  
2008 4dr SUV 285-horsepower 4.2L I6
4-speed automatic 4WD w/low range
hills med none 3 14 24 59 69 17.9  
2007 4dr SUV 395-horsepower 6.0L V8
4-speed automatic AWD
flat med none 35 5 13 47 75 14.2  
2007 4dr SUV 291-horsepower 4.2L I6
4-speed automatic 4WD w/low range
hills light none 3 8 21 68 63 18.7  
2006 4dr SUV, ext. 291-horsepower 4.2L I6
4-speed automatic 4WD w/low range
flat light light 0 14 14 72 67 15.6  
2006 4dr SUV 395-horsepower 6.0L V8
4-speed automatic RWD
flat lead hvy 25 15 53 8 75 14.0  
2006 4dr SUV 395-horsepower 6.0L V8
4-speed automatic AWD
flat med none 13 23 9 56 72 15.3  
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2006 4dr SUV 291-horsepower 4.2L I6
4-speed automatic RWD
flat light none 10 10 15 65 60 19.5  
2006 4dr SUV 291-horsepower 4.2L I6
4-speed automatic 4WD w/low range
flat med light 17 21 10 53 65 18.5  
2005 4dr SUV, ext. 300-horsepower 5.3L V8
4-speed automatic 4WD w/low range
hills med none 13 25 18 45 73 18.0  
2005 4dr SUV 275-horsepower 4.2L I6
4-speed automatic 4WD w/low range
flat light light 10 1 75 15 62 16.5  
2004 4dr SUV 275-horsepower 4.2L I6
4-speed automatic RWD
flat med hvy 40 0 0 60 65 17.2  
2004 4dr SUV 275-horsepower 4.2L I6
4-speed automatic 4WD w/low range
hills med none 2 32 1 64 82 17.3  
2003 4dr SUV, ext. 275-horsepower 4.2L I6
4-speed automatic 4WD w/low range
flat light none 10 30 10 50 60 16.0  
2003 4dr SUV 275-horsepower 4.2L I6
4-speed automatic RWD
flat v.lt light 5 20 30 45 60 18.8  
2003 4dr SUV 275-horsepower 4.2L I6
4-speed automatic 4WD w/low range
flat light none 4 23 20 53 62 18.8  
2002 4dr SUV 270-horsepower 4.2L I6
4-speed automatic RWD
flat med none 0 25 65 10 65 16.5  
2002 4dr SUV 270-horsepower 4.2L I6
4-speed automatic 4WD w/low range
flat med none 2 3 31 64 60 17.6  

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Hummer H3 vs. Chevrolet TrailBlazer 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 and Chevrolet TrailBlazer's where a car was driven. So you can get an idea of their real-world MPG based on how and where you drive a car.

See TrueDelta's information for all SUVs and SUTs.
See TrueDelta's information for all Hummer models and Chevrolet models.

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

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? see full Hummer H3 review
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. see full Hummer H3 review
 

What Our Members Are Saying about the Real Gas Mileage of the Chevrolet TrailBlazer

Chevrolet TrailBlazer Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 4dr SUV 291-horsepower 4.2L I6
4-speed automatic 4WD w/low range
Avg. 15.5 in mostly in town driving. 21.0 best on long trip with light load. see full Chevrolet TrailBlazer review
2004 4dr SUV, ext. 290-horsepower 5.3L V8
4-speed automatic 4WD w/low range
16 mpg nothing to write home about, but acceptable for a vehicle of this size, weight and capability. see full Chevrolet TrailBlazer review
2002 4dr SUV 270-horsepower 4.2L I6
4-speed automatic 4WD w/low range
I recently purchased slightly larger tires and my fuel economy is suffering by 10% compared to stock tires, but I was anticipating this anyway. see full Chevrolet TrailBlazer review