GMC Envoy vs. Hummer H3 MPG

Chart is based on 33 fuel economy reports for the GMC Envoy and 54 fuel economy reports for the Hummer H3.

GMC Envoy MPG

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 285-horsepower 4.2L I6 4-speed automatic RWD	flat	med	none	10	30	30	30	70	17.0
2008	4dr SUV 285-horsepower 4.2L I6 4-speed automatic RWD	flat	med	none	11	36	10	43	70	18.1
2008	4dr SUV 285-horsepower 4.2L I6 4-speed automatic 4WD w/low range	flat	light	light	5	15	38	43	58	17.1
2007	4dr SUV 302-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	0	5	5	90	100	10.5
2007	4dr SUV 291-horsepower 4.2L I6 4-speed automatic 4WD w/low range	flat	light	none	5	15	15	65	60	14.3
2006	4dr SUV 300-horsepower 5.3L V8 4-speed automatic RWD	flat	light	hvy	0	25	25	50	60	17.0
2006	4dr SUV 291-horsepower 4.2L I6 4-speed automatic RWD	flat	light	hvy	10	20	35	35	60	16.2
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2006	4dr SUV 291-horsepower 4.2L I6 4-speed automatic 4WD w/low range	flat	light	none	6	45	13	38	88	16.6
2005	4dr SUV, ext. 300-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	hvy	35	20	20	25	70	16.6
2005	4dr SUV 275-horsepower 4.2L I6 4-speed automatic RWD	mtns	light	light	0	0	0	100	70	21.8
2005	4dr SUV 275-horsepower 4.2L I6 4-speed automatic 4WD w/low range	hills	med	none	19	26	14	42	58	15.2
2004	4dr SUV, ext. 275-horsepower 4.2L I6 4-speed automatic 4WD w/low range	hills	lead	none	5	30	35	30	75	16.0
2004	4dr SUV 275-horsepower 4.2L I6 4-speed automatic 4WD w/low range	hills	light	light	33	17	50	0	0	17.7
2003	4dr SUV, ext. 290-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	light	1	50	39	10	60	15.0
2003	4dr SUV 290-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	3	13	38	45	63	18.5
2003	4dr SUV 275-horsepower 4.2L I6 4-speed automatic 4WD w/low range	flat	med	light	10	33	27	30	63	16.6
2002	4dr SUV 270-horsepower 4.2L I6 4-speed automatic RWD	flat	light	light	0	5	20	75	70	18.6
2002	4dr SUV 270-horsepower 4.2L I6 4-speed automatic 4WD w/low range	flat	light	light	20	15	5	60	65	16.5

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This page shows only averages. See all the GMC Envoy fuel economy data.

Hummer H3 MPG

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	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.

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What Our Members Are Saying about the Real Gas Mileage of the GMC Envoy

GMC Envoy Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2003	4dr SUV 275-horsepower 4.2L I6 4-speed automatic 4WD w/low range	I average about 16 MPG in town and 20 on free way on a good day (depends on trafic and road altitude changes, sometimes it was better than 20mpg). see full GMC Envoy review
2002	4dr SUV 270-horsepower 4.2L I6 4-speed automatic 4WD w/low range	I cannot seem to get above 16 mpg. I wish I had better fuel economy. see full GMC Envoy review
2002	4dr SUV 270-horsepower 4.2L I6 4-speed automatic 4WD w/low range	Stinks for a 6 cylinder. see full GMC Envoy review

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

Hummer H3 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
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