Mercedes-Benz GL vs. Kia Rio MPG

Chart is based on 48 fuel economy reports for the Mercedes-Benz GL and 122 fuel economy reports for the Kia Rio.

Mercedes-Benz GL 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
2014	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	1	4	15	80	65	27.3
2011	4dr SUV 382-horsepower 5.5L V8 7-speed shiftable automatic AWD	flat	light	hvy	1	49	20	30	70	15.0
2010	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	7	13	34	46	64	24.0
2009	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	med	hvy	0	13	60	27	72	22.5
2009	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	flat	med	light	21	22	27	30	60	18.0
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	6	23	31	41	71	22.4
2008	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD w/low range	flat	med	hvy	13	30	28	30	83	17.0
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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	17.3
2007	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	hills	light	light	3	12	22	64	67	25.3
2007	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD w/low range	hills	med	light	15	21	22	42	60	16.0
2007	4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD	flat	med	light	9	16	38	38	65	17.4

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

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 110-horsepower 1.6L I4 5-speed manual FWD	hills	light	none	10	70	20	0	N/A	27.0
2009	4dr Hatch 110-horsepower 1.6L I4 5-speed manual FWD	flat	light	hvy	1	32	10	57	70	27.8
2009	4dr Hatch 110-horsepower 1.6L I4 4-speed automatic FWD	flat	light	none	0	0	60	40	60	37.1
2008	4dr Sedan 110-horsepower 1.6L I4 5-speed manual FWD	flat	v.lt	none	5	5	0	90	65	40.0
2008	4dr Sedan 110-horsepower 1.6L I4 4-speed automatic FWD	hills	v.lt	none	0	25	25	50	65	32.9
2008	4dr Hatch 110-horsepower 1.6L I4 4-speed automatic FWD	flat	med	none	29	57	14	0	0	21.7
2007	4dr Sedan 96-horsepower 1.4L I4 4-speed automatic FWD	flat	med	none	0	15	10	75	130	27.9
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2007	4dr Sedan 110-horsepower 1.6L I4 4-speed automatic FWD	flat	light	light	0	13	12	76	73	36.5
2007	4dr Hatch 110-horsepower 1.6L I4 5-speed manual FWD	hills	med	hvy	0	20	40	40	70	30.7
2006	4dr Sedan 110-horsepower 1.6L I4 5-speed manual FWD	flat	med	light	70	10	15	5	120	29.0
2006	4dr Sedan 110-horsepower 1.6L I4 4-speed automatic FWD	flat	med	none	0	80	0	20	60	26.9
2006	4dr Hatch 110-horsepower 1.6L I4 5-speed manual FWD	flat	light	light	0	37	27	36	119	31.1
2003	4dr Sedan 104-horsepower 1.6L I4 4-speed automatic FWD	flat	med	light	5	40	20	35	55	29.3
2001	4dr Sedan 96-horsepower 1.5L I4 5-speed manual FWD	flat	light	none	20	10	5	65	60	36.1

This page shows only averages. See all the Kia Rio fuel economy data.

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

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

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

Kia Rio Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2016	4dr Sedan 138-horsepower 1.6L I4 6-speed shiftable automatic FWD	Very good fuel econmy. 7 to 8 L/100km over the month I drove it. Temps were quite cold also and there was some idling (warm up) time. see full Kia Rio review
2010	4dr Sedan 110-horsepower 1.6L I4 4-speed automatic FWD	really good on fuel for daughters commute to school see full Kia Rio review
2009	4dr Sedan 110-horsepower 1.6L I4 4-speed automatic FWD	The vehicle was rated at 35-41 MPG. Very good economy for a non-hybrid. see full Kia Rio review
2008	4dr Sedan 110-horsepower 1.6L I4 4-speed automatic FWD	Fuel economy stays above 30 MPG, even during fast (75 MPH+) highway driving. see full Kia Rio review
2008	4dr Sedan 110-horsepower 1.6L I4 5-speed manual FWD	From a 17mpg average Chevy truck to NEVER getting less than 29mpg city, need I say more? Well okay, how about 37mpg on a freeway run. I have only got 13000 miles on the vehicle, and can imagine the fuel economy will improve still more. see full Kia Rio review
2007	4dr Sedan 110-horsepower 1.6L I4 4-speed automatic FWD	I get 35mpg with it on the highway. see full Kia Rio review

Kia Rio Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2011	4dr Hatch 110-horsepower 1.6L I4 4-speed automatic FWD	Although this car is rated at 50 mi.per Imp.Gal. the best we can get is 44 mpg. see full Kia Rio review
2008	4dr Sedan 110-horsepower 1.6L I4 4-speed automatic FWD	doesnt get the mileage that they claimed it does.customer servive tried to tell me how to drive to save gas, i told them i already drive as they suggested see full Kia Rio review