Mercedes-Benz GL vs. Chevrolet Impala Fuel Economy (L/100km)

Chart is based on 48 fuel economy reports for the Mercedes-Benz GL and 142 fuel economy reports for the Chevrolet Impala.

Mercedes-Benz GL L/100km

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	L/100km
2014	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	1	4	15	80	65	8.6
2011	4dr SUV 382-horsepower 5.5L V8 7-speed shiftable automatic AWD	flat	light	hvy	1	49	20	30	70	15.7
2010	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	7	13	34	46	64	9.9
2009	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	med	hvy	0	13	60	27	72	10.7
2009	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	flat	med	light	21	22	27	30	60	13.1
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	6	23	31	41	71	10.7
2008	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD w/low range	flat	med	hvy	13	30	28	30	83	13.9
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2008	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	flat	med	none	21	21	23	35	85	14.0
2007	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	hills	light	light	3	12	22	64	67	9.4
2007	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD w/low range	hills	med	light	15	21	22	42	60	14.8
2007	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	flat	med	light	9	16	38	38	65	13.7

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This page shows only averages. See all the Mercedes-Benz GL fuel economy data.

Chevrolet Impala L/100km

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	L/100km
2014	4dr Sedan 305-horsepower 3.6L V6 6-speed shiftable automatic FWD	flat	med	none	20	30	35	15	55	17.6
2014	4dr Sedan 195-horsepower 2.5L I4 6-speed shiftable automatic FWD	flat	med	light	0	0	2	98	75	8.0
2013	4dr Sedan 300-horsepower 3.6L V6 6-speed automatic FWD	flat	med	light	0	1	9	90	65	9.0
2012	4dr Sedan 300-horsepower 3.6L V6 6-speed automatic FWD	flat	med	hvy	0	6	49	45	71	9.7
2011	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	flat	light	none	6	16	32	46	65	8.7
2010	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	flat	light	light	0	0	2	98	70	7.4
2009	4dr Sedan 233-horsepower 3.9L V6 4-speed automatic FWD	flat	med	light	3	1	15	81	77	9.0
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2009	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	hills	lead	light	9	12	6	74	77	10.0
2008	4dr Sedan 233-horsepower 3.9L V6 4-speed automatic FWD	flat	light	none	0	3	13	83	75	9.1
2008	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	flat	light	light	5	17	31	47	64	9.3
2007	4dr Sedan 233-horsepower 3.9L V6 4-speed automatic FWD	flat	med	light	3	13	9	76	68	9.0
2007	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	flat	light	none	4	24	11	61	82	9.6
2006	4dr Sedan 303-horsepower 5.3L V8 4-speed automatic FWD	flat	med	none	10	27	28	34	67	13.5
2006	4dr Sedan 242-horsepower 3.9L V6 4-speed automatic FWD	flat	med	none	14	37	15	35	76	11.9
2006	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	flat	light	none	14	21	18	47	69	10.2
2006	2dr Coupe 211-horsepower 3.5L V6 4-speed automatic FWD	flat	light	light	1	39	10	50	60	10.3
2005	4dr Sedan supercharged 240hp 3.8L V6 4-speed automatic FWD	hills	light	light	30	40	20	10	65	11.8
2005	4dr Sedan 180-horsepower 3.4L V6 4-speed automatic FWD	flat	med	light	4	18	71	8	73	10.1
2004	4dr Sedan supercharged 240hp 3.8L V6 4-speed automatic FWD	flat	med	light	2	18	50	30	60	7.6
2004	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	med	none	0	3	18	78	75	8.7
2004	4dr Sedan 180-horsepower 3.4L V6 4-speed automatic FWD	hills	med	hvy	9	28	27	37	65	11.1
2003	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	med	light	8	18	28	46	70	9.8
2003	4dr Sedan 180-horsepower 3.4L V6 4-speed automatic FWD	flat	med	light	30	40	0	30	60	14.7
2002	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	light	light	5	28	21	46	83	10.4
2002	4dr Sedan 180-horsepower 3.4L V6 4-speed automatic FWD	flat	light	light	4	14	25	57	62	8.9
2001	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	light	none	23	24	26	27	60	8.3
2001	4dr Sedan 180-horsepower 3.4L V6 4-speed automatic FWD	flat	light	none	0	12	0	88	70	8.4
2000	4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD	flat	light	none	20	20	40	20	60	9.8
2000	4dr Sedan 180-horsepower 3.4L V6 4-speed automatic FWD	flat	med	none	0	5	5	90	100	9.8

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This page shows only averages. See all the Chevrolet Impala fuel economy data.

See TrueDelta's information for all Mercedes-Benz models and Chevrolet models.

TrueDelta Reviews the Real Gas Mileage of the Mercedes-Benz GL

Mercedes-Benz GL Real Gas Mileage: Pros
Year	Comment
2013	In the EPA's fuel economy tests the Mercedes-Benz GL350 BlueTEC rates 19 mpg city and 26 mpg highway. We observed low 20s in casual suburban driving (a few mpg lower with a heavy foot, a few mpg higher with a very light one) and 25.5 on our trip to Chicago and back (which included some heavy urban driving and 70-mph highways). These numbers don't seem so great, given that the GL350 burns diesel? Consider that the GL-Class is not only wide and tall but also very heavy, at nearly 5,500 pounds unloaded. The gas-powered GL450 is rated 14/19. Our family vehicle, a Ford Taurus X that weighs over 1,000 pounds less than the Mercedes, struggles to crack 22 on the highway. The Audi Q7 rates the same in city driving, and a couple mpg better on the highway. Since the GL350 is almost in another class size-wise, I'm calling this one a draw. Multiply this fuel economy by a 26.4-gallon tank, and the GL350 can go quite far between $100+ fill-ups. Is it really possible to drive the nearly 300 miles to Chicago--and then back--on one tank? Yes it is, with nearly a quarter-tank to spare. (Is it possible to do this without any of three kids needing to stop for a bathroom break? To our even greater surprise, yes to this as well. They were busy watching the $1,950 dual-screen entertainment system.) see full Mercedes-Benz GL review

What Our Members Are Saying about the Real Gas Mileage of the Mercedes-Benz GL

Mercedes-Benz GL Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2010	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	For a large, seven passenger SUV it can deliver upwards of 28 mpg on the highway. see full Mercedes-Benz GL review
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	25 mpg highway fuel efficiency for a large 7 passenger SUV is fantastic see full Mercedes-Benz GL review
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	Diesel provides 25 MPG on the highway see full Mercedes-Benz GL review

Mercedes-Benz GL Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2010	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	15 mpg average. premium fuel. see full Mercedes-Benz GL review

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

Chevrolet Impala Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2012	4dr Sedan 300-horsepower 3.6L V6 6-speed automatic FWD	I got 468 miles on a tank of gas from Greenville TN to Charleston SC then to Myrtle Beach. Very impressed see full Chevrolet Impala review
2011	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	So far so good with E10 Fuel I am getting an average of 27 and I only have 500 miles on it so far. I now have over 3000 miles and just got back from a long trip 1/2 of it hilly. I set the cruise on 67 and let it go averaged over 32mpg by the end of trip see full Chevrolet Impala review
2009	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	Averaging 25.0 mpg in mixed driving, very good for the size of the vehicle and the the fact that it is a V6. see full Chevrolet Impala review
2008	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	Fuel Economy beats smaller sized cars, let alone others in the same class. 30mpg is not hard to attain. see full Chevrolet Impala review
2008	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	Its a full size car that gives good performance and still gets 30 MPG on the highway. see full Chevrolet Impala review
2008	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	If driven carefully, 22-30 MPG around town and 33-36 MPG highway. If you are a sloppy driver, make that 18-20 and 25 MPG. see full Chevrolet Impala review
2008	4dr Sedan 233-horsepower 3.9L V6 4-speed automatic FWD	Mileage averages 23-24 around town and close to 30 on road trips which is quite good considering engine size and power. see full Chevrolet Impala review
2007	4dr Sedan 233-horsepower 3.9L V6 4-speed automatic FWD	15 in town. 30 highway see full Chevrolet Impala review
2007	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	Regular gas 28 city 33 Highway. E-85 25 city 28 highway. see full Chevrolet Impala review
2007	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	Great with the 3.5LV6. I get about 23-25 City and 36-38 Hwy. see full Chevrolet Impala review

Chevrolet Impala Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2008	4dr Sedan 211-horsepower 3.5L V6 4-speed automatic FWD	Less then 25 MPG average see full Chevrolet Impala review
2008	4dr Sedan 233-horsepower 3.9L V6 4-speed automatic FWD	In town mileage is less than 15 mpg. see full Chevrolet Impala review
2007	4dr Sedan 233-horsepower 3.9L V6 4-speed automatic FWD	Only get about 25 mpg on interstate with the 3.9 Active fuel management is a gimmick in my opinion and older GM cars with a V6 I have driven have been better with fuel economy than the 3.9. see full Chevrolet Impala review