Mercedes-Benz GLK vs. Infiniti M Fuel Economy (km/L)

Chart is based on 36 fuel economy reports for the Mercedes-Benz GLK and 136 fuel economy reports for the Infiniti M.

Mercedes-Benz GLK 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 200hp 2.1L I4 Diesel 7-speed shiftable automatic AWD	flat	med	hvy	0	7	53	40	73	82.4
2013	4dr SUV turbocharged 168hp 2.1L I4 Diesel 7-speed shiftable automatic AWD	flat	med	hvy	0	0	5	95	110	15.6
2013	4dr SUV 302-horsepower 3.5L V6 7-speed shiftable automatic RWD	flat	v.lt	hvy	0	0	100	0	0	53.5
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	hills	med	none	0	9	9	83	84	44.5
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic RWD	flat	light	light	8	23	45	24	66	51.4
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	flat	light	light	11	17	24	48	93	23.9

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

Infiniti M 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 Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD	hills	light	light	12	26	29	34	68	53.5
2012	4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD	flat	med	light	3	23	32	42	80	49.7
2012	4dr Sedan 302-horsepower 3.5L V6 Hybrid 7-speed shiftable automatic RWD	flat	light	hvy	0	50	20	30	80	52.0
2011	4dr Sedan 420-horsepower 5.6L V8 7-speed shiftable automatic RWD	flat	med	hvy	35	35	5	25	75	45.3
2011	4dr Sedan 420-horsepower 5.6L V8 7-speed shiftable automatic AWD	flat	med	light	7	31	25	37	67	43.4
2011	4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic RWD	flat	med	light	5	45	10	40	60	49.4
2011	4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD	flat	med	light	5	24	30	40	70	46.9
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2010	4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic AWD	flat	med	none	10	10	40	40	75	33.0
2010	4dr Sedan 303-horsepower 3.5L V6 7-speed shiftable automatic RWD	flat	light	hvy	0	3	12	85	70	51.7
2009	4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic AWD	flat	med	light	6	14	15	65	69	36.3
2009	4dr Sedan 303-horsepower 3.5L V6 7-speed shiftable automatic RWD	flat	med	light	0	0	80	20	60	51.7
2009	4dr Sedan 303-horsepower 3.5L V6 5-speed shiftable automatic AWD	hills	med	light	20	40	10	30	65	49.4
2008	4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic RWD	flat	lead	hvy	35	15	5	45	75	40.0
2008	4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic RWD	flat	med	light	21	17	18	45	67	46.2
2008	4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic AWD	hills	med	light	9	10	15	66	68	47.1
2007	4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic RWD	flat	med	light	4	35	38	23	70	37.3
2007	4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic RWD	flat	light	light	20	28	23	29	71	46.5
2007	4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic AWD	flat	med	light	2	21	42	35	68	46.9
2006	4dr Sedan 335-horsepower 4.5L V8 5-speed shiftable automatic RWD	flat	light	light	10	13	17	60	73	45.5
2006	4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic RWD	flat	med	light	9	28	23	39	68	46.9
2006	4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic AWD	flat	med	light	9	17	26	47	75	39.8
2006	0 280-horsepower 3.5L V6 5-speed shiftable automatic AWD	flat	light	hvy	5	55	30	10	110	6.6
2004	4dr Sedan 340-horsepower 4.5L V8 5-speed shiftable automatic RWD	hills	med	light	13	8	45	35	78	46.7
2003	4dr Sedan 340-horsepower 4.5L V8 5-speed shiftable automatic RWD	flat	med	light	13	33	17	36	78	39.7

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This page shows only averages. See all the Infiniti M fuel economy data.

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

Mercedes-Benz GLK Real Gas Mileage: Pros
Year	Comment
2013	Fuel economy was a "why not to buy" with the GLK350, as the gas-powered Mercedes-Benz crossover trails the competing Audi and BMW in this area. With the diesel, though, the tables turn. BMW doesn't offer a diesel X3 in North America, at least not yet. For 2014, Audi does offer a Q5 TDI.When I heard that Audi was going to offer a diesel compact crossover, I assumed that the engine in question would be a four-cylinder unit. Nope, it's a 240-horsepower 3.0-liter V6. The official line: a four-cylinder wouldn't suit Audi's performance-oriented brand image in the U.S. With a much smaller engine and (partly as a result) a couple hundred pounds less curb weight, the GLK250 BlueTEC tops the Q5 in fuel economy. But, according to the EPA, only on the highway, with a rating of 33 mpg vs. 31.Both crossovers achieve an EPA city rating of 24 mpg. In the real world, the GLK250 impresses in suburuban driving, with the trip computer usually reporting averages from 31 to 35, and on one run to my son's school nearly 40. This is about 50 percent better than in the GLK350. see full Mercedes-Benz GLK review

Mercedes-Benz GLK Real Gas Mileage: Cons
Year	Comment
2010	If you prioritize performance, the GLK's mandatory 3.5-liter V6, upgraded via direct injection from 268 to 302 horsepower for 2013, might seem a good thing. But even after the power bump, the boosted sixes in the Audi and BMW are stronger, and they're paired with more responsive eight-speed automatics (vs. a seven-speed transmission introduced nearly a decade ago). More of an issue for most potential buyers: fuel economy. The GLK350 is more efficient for 2013, thanks to direct injection, electric-steering assist, driving style feedback, and a shudder-free automatic start/stop system (study it, BMW). The EPA ratings have improved from last year's 16 mpg city, 21 highway to 19/24. But even 19/24 is only marginally competitive in the 2013 challenge. The BMW X3 xDrive28i is nearly as quick, and rates 21/28. The quicker X3 xDrive35i matches the GLK in the city, but does a couple mpg better on the highway. In our real-world suburban driving, the GLK350 trailed the BMW X3 xDrive28i by one to two mpg. Not a big difference, but a difference. Mercedes will soon offer a more fuel-efficient engine option in North American GLKs. But it won't be a smaller gas engine. Instead, the new GLK250 will be motivated by a 190-horsepower, four-cylinder diesel engine. see full Mercedes-Benz GLK review

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

Mercedes-Benz GLK Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2013	4dr SUV turbocharged 168hp 2.1L I4 Diesel 7-speed shiftable automatic AWD	The diesel option was the #1 reason I looked at the vehicule and the deciding point to go with it. At over 200 miles per day to communte, I needed the mileage numbers and in Quebec, diesel is less expensive than regular gas and way less than premium. see full Mercedes-Benz GLK review
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic RWD	better than expected: 19 suburban, 25 highway see full Mercedes-Benz GLK review
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	A major disappointment. But, to be fair, I live at the top of a mountain in LA and all of my past cars also had bad mileage. It isn't bad on the highway...I get average of 22 mpg...but pure city driving drags it down to 16-17. see full Mercedes-Benz GLK review

Mercedes-Benz GLK Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic RWD	having owned a c280 with 3 liter engine and been very happy with performance plus low 30s highway, mid to high 20s suburban, why not put 3 liter in the glk? while glk is heavier, 3.5 liter penalizes mpg for little better performance. otherwise there is nothing not to like and alot to like about this great vehicle. see full Mercedes-Benz GLK review
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	If you are looking for a Prius....this isn't your car. see full Mercedes-Benz GLK review
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	sad see full Mercedes-Benz GLK review
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	Performance comes at a price...gas mileage more on the order of a full size SUV. Wish a diesel had been available. see full Mercedes-Benz GLK review

What Our Members Are Saying about the Real Gas Mileage of the Infiniti M

Infiniti M Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2011	4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD	Fuel economy is abysmal around town. I guess that's the price you pay for going grocery shopping with over 300 HP. However, on the highway it's very possible to exceed the EPA mileage number. see full Infiniti M review
2006	4dr Sedan 335-horsepower 4.5L V8 5-speed shiftable automatic RWD	V8 power--it's a gas guzzler and could've used an extra 1 or 2 speeds more since it revs so high at highway speeds. see full Infiniti M review
2006	4dr Sedan 335-horsepower 4.5L V8 5-speed shiftable automatic RWD	78,000 miles primarily city driving and rarely use AC-16.9 mpg. 4.5 L V8 great power train with RWD-great fun to drive. see full Infiniti M review

Infiniti M Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2012	4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic AWD	I get around 17 city/25 highway. Not impressive but this is not why you buy a car like this. see full Infiniti M review
2011	4dr Sedan 330-horsepower 3.7L V6 7-speed shiftable automatic RWD	I get average about 22 MPG with 80% of highway driving, this is with baby footing of the car, in town and climbing the hill, the milage can drop to 18-19. see full Infiniti M review
2011	4dr Sedan 420-horsepower 5.6L V8 7-speed shiftable automatic AWD	Fairly poor. see full Infiniti M review
2008	4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic RWD	average 21 hwy see full Infiniti M review
2008	4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic RWD	needs a 6th gear, since there is too much revving in 5th gear while cruising. they put a 6th gear in the 2009 version see full Infiniti M review
2008	4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic AWD	Gas mileage stinks. see full Infiniti M review
2007	4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic RWD	16.9 in city traffice 18.nothing on the highway...blah! see full Infiniti M review
2007	4dr Sedan 325-horsepower 4.5L V8 5-speed shiftable automatic RWD	Averages about 18.5 mpg in mixed suburban/urban/freeway driving. Can get thirsty when you get on the gas, but duh... see full Infiniti M review
2007	4dr Sedan 275-horsepower 3.5L V6 5-speed shiftable automatic AWD	Large cars get poor milage. 18-20 mpg would like an option to trade some performance for added MPG. see full Infiniti M review
2006	4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic RWD	Often avergaed as low as 16mpg on a tank-full of gas. see full Infiniti M review