GMC Sierra 1500 vs. Pontiac G6 MPG

Chart is based on 526 fuel economy reports for the GMC Sierra 1500 and 46 fuel economy reports for the Pontiac G6.

GMC Sierra 1500 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
2021	4dr Crew Cab 6ft bed turbocharged 277hp 3.0L V6 Diesel 10-speed shiftable automatic 4WD w/low range	flat	light	light	0	25	25	50	70	24.5
2018	4dr Crew Cab 5.5ft bed 420-horsepower 6.2L V8 8-speed shiftable automatic 4WD w/low range	flat	light	light	0	5	15	80	70	22.0
2015	4dr Crew Cab 5.5ft bed 420-horsepower 6.2L V8 8-speed shiftable automatic 4WD w/low range	flat	med	light	0	5	0	95	65	20.9
2015	2dr Regular Cab 6.5ft bed 355-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	med	none	8	38	0	55	118	18.7
2014	4dr Crew Cab 5.5ft bed 420-horsepower 6.2L V8 6-speed shiftable automatic 4WD w/low range	hills	med	none	0	0	25	75	75	18.9
2014	4dr Crew Cab 5.5ft bed 355-horsepower 5.3L V8 6-speed shiftable automatic RWD	flat	light	hvy	5	10	0	85	63	25.0
2011	4dr Extended Cab 6.5ft bed 403-horsepower 6.2L V8 6-speed shiftable automatic RWD	flat	med	light	5	10	25	60	75	16.5
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2011	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic RWD	flat	med	hvy	5	0	25	70	60	18.3
2011	4dr Extended Cab 6.5ft bed 302-horsepower 4.8L V8 4-speed automatic 4WD, part-time w/low range	hills	light	none	3	18	42	37	70	15.2
2010	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	light	light	10	35	15	40	71	15.8
2010	4dr Crew Cab 5.5ft bed 403-horsepower 6.2L V8 6-speed shiftable automatic AWD	hills	med	light	0	25	25	50	60	18.5
2010	2dr Regular Cab 6.5ft bed 302-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	18	1	0	81	68	18.0
2009	4dr Extended Cab 6.5ft bed 367-horsepower 6.0L V8 6-speed shiftable automatic 4WD w/low range	flat	med	none	3	8	23	68	63	17.3
2009	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	hills	med	none	5	80	0	15	75	15.4
2009	4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8 6-speed shiftable automatic 4WD w/low range	flat	light	hvy	0	0	0	100	110	16.8
2009	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	light	light	8	28	17	47	65	17.9
2008	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	0	10	0	90	100	20.3
2008	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	17	22	27	34	60	17.0
2008	4dr Extended Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	0	33	25	42	70	17.0
2008	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	9	0	27	64	60	17.9
2008	4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8 4-speed automatic 4WD, part-time w/low range	hills	lead	none	18	0	33	50	115	14.0
2008	2dr Regular Cab 8ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	light	light	0	0	10	90	65	22.0
2008	2dr Regular Cab 6.5ft bed 195-horsepower 4.3L V6 4-speed automatic RWD	flat	light	none	5	10	10	75	60	19.5
2007	4dr Extended Cab 6.5ft bed 367-horsepower 6.0L V8 4-speed automatic 4WD w/low range	hills	light	light	0	10	10	80	60	14.1
2007	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	12	37	25	27	75	17.7
2007	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	light	5	0	53	43	70	14.1
2007	4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8 4-speed automatic RWD	flat	med	light	5	30	7	59	70	18.1
2007	4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8 4-speed automatic 4WD w/low range	flat	med	none	23	3	0	74	75	16.5
2007	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	light	light	10	30	45	15	60	18.1
2007	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	4	10	9	77	66	18.4
2007	4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	5	65	0	30	60	16.7
2006	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	30	20	20	30	100	14.7
2006	4dr Extended Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	10	40	25	25	65	18.5
2006	4dr Crew Cab 5.5ft bed 345-horsepower 6.0L V8 4-speed automatic AWD	flat	med	none	5	20	50	25	65	15.3
2006	4dr Crew Cab 5.5ft bed 310-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	light	none	2	80	10	8	70	16.8
2005	4dr Extended Cab 6.5ft bed 310-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	light	7	11	13	69	62	16.0
2005	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	hvy	4	8	88	0	N/A	17.5
2005	4dr Extended Cab 6.5ft bed 285-horsepower 4.8L V8 4-speed automatic 4WD w/low range	flat	light	light	0	0	0	100	110	17.4
2005	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	0	10	10	81	68	16.2
2005	2dr Regular Cab 6.5ft bed 285-horsepower 4.8L V8 4-speed automatic RWD	flat	med	hvy	0	2	18	80	65	19.5
2003	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	13	13	13	60	60	17.3
2003	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	hills	v.lt	none	0	20	10	70	100	12.5
2003	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	0	10	20	70	60	16.8
2001	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	med	none	0	40	0	60	70	14.9
2001	2dr Regular Cab 6.5ft bed 270-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	0	40	0	60	110	77.8

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This page shows only averages. See all the GMC Sierra 1500 fuel economy data.

Pontiac G6 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 Sedan 219-horsepower 3.5L V6 4-speed shiftable automatic FWD	flat	med	light	0	32	0	68	70	24.0
2008	4dr Sedan 219-horsepower 3.5L V6 4-speed automatic FWD	flat	med	light	23	24	32	21	80	23.4
2008	4dr Sedan 164-horsepower 2.4L I4 4-speed automatic FWD	flat	med	light	2	23	13	62	78	26.1
2008	2dr Coupe 219-horsepower 3.5L V6 4-speed shiftable automatic FWD	flat	med	light	15	35	35	15	60	18.0
2007	4dr Sedan 252-horsepower 3.6L V6 6-speed shiftable automatic FWD	flat	light	light	10	25	25	40	55	26.0
2007	4dr Sedan 224-horsepower 3.5L V6 4-speed shiftable automatic FWD	flat	light	light	13	18	18	53	68	22.8
2007	4dr Sedan 224-horsepower 3.5L V6 4-speed automatic FWD	flat	med	none	0	2	4	95	73	23.0
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2007	2dr Hardtop conv. 217-horsepower 3.5L V6 4-speed shiftable automatic FWD	flat	light	light	6	13	9	71	62	24.5
2007	2dr Coupe 224-horsepower 3.5L V6 4-speed shiftable automatic FWD	flat	med	light	19	15	29	37	69	20.0
2006	4dr Sedan 240-horsepower 3.9L V6 4-speed shiftable automatic FWD	flat	med	none	5	3	56	36	66	19.9
2006	4dr Sedan 201-horsepower 3.5L V6 4-speed shiftable automatic FWD	flat	med	light	18	15	20	47	95	24.1
2006	4dr Sedan 201-horsepower 3.5L V6 4-speed automatic FWD	flat	light	light	16	19	9	55	67	31.7
2006	4dr Sedan 167-horsepower 2.4L I4 4-speed automatic FWD	hills	med	none	32	0	9	59	68	30.2
2006	2dr Hardtop conv. 227-horsepower 3.9L V6 4-speed shiftable automatic FWD	flat	light	none	0	60	30	10	75	17.8
2006	2dr Coupe 240-horsepower 3.9L V6 6-speed manual FWD	flat	med	light	18	36	25	21	85	22.4
2006	2dr Coupe 240-horsepower 3.9L V6 4-speed shiftable automatic FWD	flat	med	light	3	27	30	41	70	20.0
2006	2dr Coupe 201-horsepower 3.5L V6 4-speed shiftable automatic FWD	flat	light	none	2	10	30	58	100	31.4
2005	4dr Sedan 200-horsepower 3.5L V6 4-speed shiftable automatic FWD	flat	med	light	3	3	25	70	100	26.3

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This page shows only averages. See all the Pontiac G6 fuel economy data.

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What Our Members Are Saying about the Real Gas Mileage of the GMC Sierra 1500

GMC Sierra 1500 Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2004	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	Its great. see full GMC Sierra 1500 review

GMC Sierra 1500 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2006	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	Fuel economy is a suggestion - the truck, like all trucks, gets mediocre fuel economy. see full GMC Sierra 1500 review

What Our Members Are Saying about the Real Gas Mileage of the Pontiac G6

Pontiac G6 Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2009	4dr Sedan 164-horsepower 2.4L I4 6-speed shiftable automatic FWD	I opted to get the 4 cylinder 6 speed automatic because of the higher EPA rating and I have a fairly long commute to and from work. see full Pontiac G6 review
2007	4dr Sedan 169-horsepower 2.4L I4 4-speed automatic FWD	Getting 25 city miles see full Pontiac G6 review
2007	2dr Coupe 224-horsepower 3.5L V6 4-speed shiftable automatic FWD	Amazingly it gets 30+ on the highway. I usually drive in stop-and-go traffic but still get 20 mpg easily. see full Pontiac G6 review
2006	4dr Sedan 201-horsepower 3.5L V6 4-speed automatic FWD	Even with a 6 cylinder, and my overzealous driving, I regularly got 28-29 MPG. This is a mix of highway and city driving in a very hilly area. see full Pontiac G6 review

Pontiac G6 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2008	4dr Sedan 219-horsepower 3.5L V6 4-speed automatic FWD	The V6 I drove had MPG ratings slightly worse than the 4-cyl models I was looking at. see full Pontiac G6 review
2007	2dr Hardtop conv. 217-horsepower 3.5L V6 4-speed shiftable automatic FWD	Not good enough. see full Pontiac G6 review