Mercedes-Benz GLK vs. Cadillac CTS MPG

Chart is based on 36 fuel economy reports for the Mercedes-Benz GLK and 133 fuel economy reports for the Cadillac CTS.

Mercedes-Benz GLK 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
2013	4dr SUV turbocharged 200hp 2.1L I4 Diesel 7-speed shiftable automatic AWD	flat	med	hvy	0	7	53	40	73	35.0
2013	4dr SUV turbocharged 168hp 2.1L I4 Diesel 7-speed shiftable automatic AWD	flat	med	hvy	0	0	5	95	110	36.8
2013	4dr SUV 302-horsepower 3.5L V6 7-speed shiftable automatic RWD	flat	v.lt	hvy	0	0	100	0	0	22.7
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	hills	med	none	0	9	9	83	84	22.9
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic RWD	flat	light	light	8	23	45	24	66	21.8
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	flat	light	light	11	17	24	48	93	18.7

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

Cadillac CTS 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
2016	4dr Sedan turbocharged 268hp 2.0L I4 8-speed shiftable automatic AWD	flat	med	light	0	0	60	40	70	22.1
2011	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	flat	med	hvy	23	40	13	23	83	18.0
2010	4dr Wagon 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	hills	light	light	0	5	2	93	60	23.0
2010	4dr Wagon 270-horsepower 3.0L V6 6-speed shiftable automatic AWD	flat	v.lt	none	0	64	3	34	70	18.2
2010	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	flat	light	none	0	0	0	100	70	25.5
2009	4dr Sedan supercharged 556hp 6.2L V8 6-speed shiftable automatic RWD	hills	lead	light	10	8	39	44	62	15.3
2009	4dr Sedan supercharged 556hp 6.2L V8 6-speed manual RWD	hills	lead	light	5	5	35	55	65	13.2
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2009	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	hills	med	hvy	11	16	21	53	71	22.6
2009	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	flat	med	light	3	18	42	37	57	19.8
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	flat	light	light	10	32	34	24	72	19.7
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	flat	med	none	4	23	42	31	70	19.7
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed manual RWD	hills	med	light	8	25	15	53	75	22.5
2008	4dr Sedan 263-horsepower 3.6L V6 6-speed shiftable automatic RWD	flat	light	none	1	6	19	74	70	23.4
2008	4dr Sedan 263-horsepower 3.6L V6 6-speed shiftable automatic AWD	hills	med	light	0	0	83	17	70	19.3
2007	4dr Sedan 255-horsepower 3.6L V6 5-speed shiftable automatic RWD	flat	light	light	4	9	9	78	71	20.3
2007	4dr Sedan 210-horsepower 2.8L V6 5-speed shiftable automatic RWD	mtns	lead	light	0	0	70	30	60	19.5
2006	4dr Sedan 400-horsepower 6.0L V8 6-speed manual RWD	flat	med	hvy	15	50	0	35	70	18.4
2006	4dr Sedan 255-horsepower 3.6L V6 6-speed manual RWD	flat	lead	light	25	10	5	60	85	21.0
2006	4dr Sedan 255-horsepower 3.6L V6 5-speed shiftable automatic RWD	flat	med	light	7	11	11	72	80	21.3
2006	4dr Sedan 210-horsepower 2.8L V6 6-speed manual RWD	flat	light	none	5	20	50	25	100	16.8
2006	4dr Sedan 210-horsepower 2.8L V6 5-speed shiftable automatic RWD	flat	med	light	7	20	50	23	67	19.2
2005	4dr Sedan 400-horsepower 5.7L V8 6-speed manual RWD	flat	med	light	7	13	24	57	69	20.7
2005	4dr Sedan 255-horsepower 3.6L V6 6-speed manual RWD	flat	med	none	2	15	35	48	60	20.2
2005	4dr Sedan 255-horsepower 3.6L V6 5-speed automatic RWD	flat	med	light	8	12	33	47	69	23.9
2004	4dr Sedan 400-horsepower 5.7L V8 6-speed manual RWD	flat	med	light	0	0	30	70	67	21.2
2004	4dr Sedan 255-horsepower 3.6L V6 5-speed automatic RWD	flat	med	none	7	25	24	45	66	21.9
2004	4dr Sedan 220-horsepower 3.2L V6 5-speed manual RWD	flat	med	light	10	10	0	80	70	25.6
2003	4dr Sedan 220-horsepower 3.2L V6 5-speed automatic RWD	flat	med	light	10	17	33	40	91	22.9

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This page shows only averages. See all the Cadillac CTS 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

TrueDelta Reviews the Real Gas Mileage of the Cadillac CTS

Cadillac CTS Real Gas Mileage: Cons
Year	Comment
	With the 2011 528i, BMW pioneered the use of a turbocharged four-cylinder engine in a $60,000 midsize sedan on this side of the Atlantic. The point: fuel economy, specifically EPA ratings of 22 mpg city and 33 mpg highway even with all-wheel-drive (24/34 with RWD). Audi followed with an A6 2.0T good for 20/29 (25/33 with FWD) a year later. The new CTS takes the path blazed by the Germans, but much less effectively. Though the Cadillac weighs significantly less than the Audi or the BMW, its EPA ratings are lower, 19/28 (20/30 with RWD). The same is the case with the two 3.6-liter V6 engine options, even though unlike the turbo four they can be paired with an eight-speed (instead of a six-speed) automatic. The rear-drive-only Vsport barely evades the gas guzzler tax with ratings of 16/24. Even the 445-horsepower turbocharged 4.4-liter V8 in the BMW 550i does a bit better. In my real-world driving, the CTS's trip computer confirmed this shortcoming. Even considering that the outside temperature was near zero, post-warm-up averages that clustered around 18 were disappointing. Only by driving the car with a light foot could I nudge the suburban average over 20, and even then not much over. A 320-horsepower 3.0-liter 640i Grand Coupe tested a week earlier in similar conditions did at least one mpg better than the 272-horsepower, 2.0-liter Cadillac. And when I tested a 528i xDrive in slightly warmer temps it often managed 25 mpg (in an EcoPro Mode the Cadillac lacks). In one trip this BMW even touched 30. see full Cadillac CTS review

What Our Members Are Saying about the Real Gas Mileage of the Cadillac CTS

Cadillac CTS Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	fill for $50 on reg. today that is cheap see full Cadillac CTS review
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	23 cty & 26 hwy need i say more see full Cadillac CTS review
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	Averaging 25.5 on the highway. see full Cadillac CTS review
2003	4dr Sedan 220-horsepower 3.2L V6 5-speed automatic RWD	The fuel economy is better than expected, when driven in mixed city/highway driving. see full Cadillac CTS review
2003	4dr Sedan 220-horsepower 3.2L V6 5-speed automatic RWD	I get 25 miles per gallon - mostly highway driving - which is reasonable for a car of this size and performance. see full Cadillac CTS review
2003	4dr Sedan 220-horsepower 3.2L V6 5-speed automatic RWD	about 26 mpg is great....im use to driving a suv where im luckey to get 16mpg highway see full Cadillac CTS review

Cadillac CTS Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2009	4dr Sedan supercharged 556hp 6.2L V8 6-speed shiftable automatic RWD	14mpg is not great. However, the performance makes more than up for it. see full Cadillac CTS review
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	City mileage acceptable; Highway mileage could be better. see full Cadillac CTS review
2005	4dr Sedan 255-horsepower 3.6L V6 5-speed automatic RWD	I get 20-21mpg on my commute which is about 70%hwy, and normally 25-27 with pure freeway driving, it just seems with technology today they could kick that up to 23-24 and 28-30 respectively. see full Cadillac CTS review
2004	4dr Sedan 255-horsepower 3.6L V6 5-speed automatic RWD	Average at best. Yea it is a heavy car with all the safety eqipment. see full Cadillac CTS review