GMC Sierra 1500 vs. Mercedes-Benz M-Class Fuel Economy (km/L)

Chart is based on 526 fuel economy reports for the GMC Sierra 1500 and 47 fuel economy reports for the Mercedes-Benz M-Class.

GMC Sierra 1500 km/L

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	km/L
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	57.6
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	51.7
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	49.3
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	8.0
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	44.6
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	58.8
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	38.8
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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	43.0
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	35.7
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	29.3
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	43.5
2010	2dr Regular Cab 6.5ft bed 302-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	18	1	0	81	68	42.4
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	40.7
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	36.2
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	7.1
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	42.1
2008	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	0	10	0	90	100	8.6
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	40.0
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	40.0
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	42.1
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	5.9
2008	2dr Regular Cab 8ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	light	light	0	0	10	90	65	51.7
2008	2dr Regular Cab 6.5ft bed 195-horsepower 4.3L V6 4-speed automatic RWD	flat	light	none	5	10	10	75	60	45.9
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	33.2
2007	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	12	37	25	27	75	41.6
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	33.2
2007	4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8 4-speed automatic RWD	flat	med	light	5	30	7	59	70	42.5
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	38.9
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	42.6
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	43.2
2007	4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	5	65	0	30	60	39.3
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	6.3
2006	4dr Extended Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	10	40	25	25	65	43.5
2006	4dr Crew Cab 5.5ft bed 345-horsepower 6.0L V8 4-speed automatic AWD	flat	med	none	5	20	50	25	65	36.0
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	39.5
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	37.7
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	41.2
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	7.4
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	38.1
2005	2dr Regular Cab 6.5ft bed 285-horsepower 4.8L V8 4-speed automatic RWD	flat	med	hvy	0	2	18	80	65	45.9
2003	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	13	13	13	60	60	40.8
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	5.3
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	39.5
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	35.0
2001	2dr Regular Cab 6.5ft bed 270-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	0	40	0	60	110	33.1

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

Mercedes-Benz M-Class km/L

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	km/L
2013	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	hvy	7	21	16	56	65	68.5
2012	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	hills	light	none	0	5	15	80	64	68.2
2011	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	10	10	60	20	60	56.5
2010	4dr SUV turbocharged 228hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	hills	med	light	5	10	50	35	100	9.3
2010	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	med	none	1	5	25	69	70	62.6
2010	4dr SUV 382-horsepower 5.5L V8 7-speed shiftable automatic AWD	flat	med	hvy	17	15	15	54	70	46.3
2009	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	4	7	46	44	73	58.4
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2008	4dr SUV turbocharged 221hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	med	none	25	30	30	15	100	9.0
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	2	18	17	63	70	52.4
2007	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	v.lt	none	10	25	20	45	100	9.2
2007	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	flat	light	light	6	9	18	67	69	48.9
2006	4dr SUV 302-horsepower 5.0L V8 7-speed shiftable automatic AWD	flat	lead	hvy	25	25	25	25	75	41.2
2006	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	hills	light	light	0	0	46	54	65	46.1
2005	4dr SUV 288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range	flat	med	hvy	0	47	47	5	80	43.5
2005	4dr SUV 232-horsepower 3.7L V6 5-speed shiftable automatic AWD w/low range	flat	light	none	5	20	25	50	70	35.7
2004	4dr SUV 232-horsepower 3.7L V6 5-speed shiftable automatic AWD w/low range	flat	light	none	0	0	60	40	67	43.3
2003	4dr SUV 288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range	flat	med	hvy	5	5	25	65	80	41.2
2003	4dr SUV 215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range	mtns	light	light	0	0	20	80	65	37.6
2002	4dr SUV 342-horsepower 5.4L V8 5-speed shiftable automatic AWD w/low range	flat	med	none	1	48	8	44	90	19.6
2002	4dr SUV 288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range	flat	med	light	8	50	20	23	88	22.7
2002	4dr SUV 215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range	flat	med	hvy	15	25	35	25	70	37.6
2000	4dr SUV 268-horsepower 4.3L V8 5-speed shiftable automatic AWD w/low range	flat	light	none	0	0	20	80	100	11.7
2000	4dr SUV 215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range	flat	med	none	0	0	10	90	65	50.6

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This page shows only averages. See all the Mercedes-Benz M-Class 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 Mercedes-Benz M-Class

Mercedes-Benz M-Class Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2013	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	Upper 20's on highway and mid-20's in suburbia from a vehicle that weighs 5K lbs. see full Mercedes-Benz M-Class review
2009	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	Other luxury cars/SUVs require premium gas. Diesel could be same or even cheaper than regular gas and with immense torque and a somewhat light foot I get almost 25Mpg see full Mercedes-Benz M-Class review
2007	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	5000 lbs vehicle. Gets 32 mpg on highway up to 75 mph, faster than that mpg drops. 23 to 24 mpg around town see full Mercedes-Benz M-Class review

Mercedes-Benz M-Class Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2007	4dr SUV 302-horsepower 5.0L V8 7-speed shiftable automatic AWD	Have a V8, so I should have expected, but mpg is averaging about 16 around town. With the current gas prices, I dread going to the pump. $90 to fill up the huge tank. see full Mercedes-Benz M-Class review