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Mercedes-Benz GLK vs. Lexus IS MPG

Chart is based on 36 fuel economy reports for the Mercedes-Benz GLK and 143 fuel economy reports for the Lexus IS.

Mercedes-Benz GLK MPG

Mercedes-Benz GLK Mercedes-Benz GLK 2013 35.0 MPG Highway Percentage 40 percent Mercedes-Benz GLK Mercedes-Benz GLK 2013 36.8 MPG Highway Percentage 95 percent Mercedes-Benz GLK Mercedes-Benz GLK 2013 22.7 MPG Highway Percentage 0 percent Mercedes-Benz GLK Mercedes-Benz GLK 2011 22.9 MPG Highway Percentage 83 percent Mercedes-Benz GLK Mercedes-Benz GLK 2010 21.8 MPG Highway Percentage 24 percent Mercedes-Benz GLK Mercedes-Benz GLK 2010 18.7 MPG Highway Percentage 48 percent
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.

Lexus IS MPG

Lexus IS Lexus IS 2016 18.7 MPG Highway Percentage 20 percent Lexus IS Lexus IS 2010 20.3 MPG Highway Percentage 2 percent Lexus IS Lexus IS 2010 21.8 MPG Highway Percentage 15 percent Lexus IS Lexus IS 2010 20.3 MPG Highway Percentage 44 percent Lexus IS Lexus IS 2009 25.4 MPG Highway Percentage 57 percent Lexus IS Lexus IS 2009 27.0 MPG Highway Percentage 70 percent Lexus IS Lexus IS 2008 17.7 MPG Highway Percentage 28 percent Lexus IS Lexus IS 2008 24.9 MPG Highway Percentage 40 percent Lexus IS Lexus IS 2008 31.0 MPG Highway Percentage 55 percent Lexus IS Lexus IS 2008 22.4 MPG Highway Percentage 21 percent Lexus IS Lexus IS 2008 20.5 MPG Highway Percentage 20 percent Lexus IS Lexus IS 2007 24.6 MPG Highway Percentage 50 percent Lexus IS Lexus IS 2007 31.8 MPG Highway Percentage 80 percent Lexus IS Lexus IS 2007 25.3 MPG Highway Percentage 45 percent Lexus IS Lexus IS 2006 22.1 MPG Highway Percentage 30 percent Lexus IS Lexus IS 2006 24.9 MPG Highway Percentage 47 percent Lexus IS Lexus IS 2006 24.0 MPG Highway Percentage 65 percent Lexus IS Lexus IS 2005.5 23.3 MPG Highway Percentage 60 percent Lexus IS Lexus IS 2005 15.9 MPG Highway Percentage 11 percent Lexus IS Lexus IS 2004 19.0 MPG Highway Percentage 50 percent Lexus IS Lexus IS 2004 21.1 MPG Highway Percentage 66 percent Lexus IS Lexus IS 2004 24.0 MPG Highway Percentage 48 percent Lexus IS Lexus IS 2003 19.6 MPG Highway Percentage 41 percent Lexus IS Lexus IS 2003 23.4 MPG Highway Percentage 70 percent Lexus IS Lexus IS 2002 21.7 MPG Highway Percentage 26 percent Lexus IS Lexus IS 2002 19.6 MPG Highway Percentage 35 percent Lexus IS Lexus IS 2002 21.5 MPG Highway Percentage 23 percent
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 306-horsepower 3.5L V6
8-speed shiftable automatic RWD		 flat light light 50 10 20 20 70 18.7  
2010 4dr Sedan 416-horsepower 5.0L V8
8-speed shiftable automatic RWD		 flat med light 0 0 98 2 80 20.3  
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat med light 5 70 10 15 60 21.8  
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 hills med none 7 16 33 44 83 20.3  
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat light none 2 9 33 57 90 25.4  
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 hills light light 5 5 20 70 65 27.0  
2008 4dr Sedan 416-horsepower 5.0L V8
8-speed shiftable automatic RWD		 flat med hvy 20 25 27 28 70 17.7  
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2008 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD		 hills med none 16 20 25 40 66 24.9  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat v.lt light 15 15 15 55 70 31.0  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 flat light light 4 18 57 21 61 22.4  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed manual RWD		 flat med light 8 63 10 20 110 20.5  
2007 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD		 flat med light 6 21 23 50 75 24.6  
2007 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat light hvy 5 5 10 80 70 31.8  
2007 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 flat light light 5 23 28 45 63 25.3  
2006 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD		 flat med light 7 50 13 30 71 22.1  
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat med light 9 25 20 47 88 24.9  
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 hills light light 5 5 25 65 70 24.0  
2005.5 4dr Sedan 204-horsepower 2.5L V6
6-speed manual RWD		 flat med none 20 20 0 60 80 23.3  
2005 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 41 49 0 11 59 15.9  
2004 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat lead hvy 20 15 15 50 75 19.0  
2004 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 1 27 6 66 77 21.1  
2004 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD		 flat med light 7 29 16 48 71 24.0  
2003 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 9 33 18 41 88 19.6  
2003 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD		 flat med none 0 0 30 70 75 23.4  
2002 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 12 19 43 26 80 21.7  
2002 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 10 40 15 35 68 19.6  
2002 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD		 flat med light 15 24 39 23 73 21.5  

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This page shows only averages. See all the Lexus IS fuel economy data.

Mercedes-Benz GLK vs. Lexus IS MPG

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Mercedes-Benz GLK and Lexus IS's where a car was driven. So you can get an idea of their real-world MPG based on how and where you drive a car.

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

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

Mercedes-Benz GLK Real Gas Mileage: Pros
YearComment
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
YearComment
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
YearBody/PowertrainComment
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
YearBody/PowertrainComment
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 Lexus IS

Lexus IS Real Gas Mileage: Cons
YearComment
The 2014 IS 350 manages 19 mpg in the EPA city test, and 28 in the highway test. While these figures tie those for the Cadillac ATS 3.6, they're short of the 23/33 achieved by the BMW 335i. Also, with both the BMW and the Cadillac you can step down to more efficient turbocharged four-cylinder engines. With the new IS, your only other engine option is a small V6, and its fuel economy is only a couple mpg better than that of the big V6 (21/30). The BMW has a further advantage: you can set the steering and suspension to "Sport" without forcing the transmission to hold a lower gear. In the 2014 IS 350 F Sport, the sport modes are "all or nothing." Select one to firm up the steering and suspension, and the transmission won't shift beyond sixth gear, reducing fuel economy. Lexus should follow Audi's lead and offer an "Individual" mode, where each system (powertrain, steering, suspension, etc.) can be set separately. see full Lexus IS review
 

What Our Members Are Saying about the Real Gas Mileage of the Lexus IS

Lexus IS Real Gas Mileage: Pros
YearBody/PowertrainComment
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 Almost as good as Prius, this is the hybrid 250h see full Lexus IS review
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 Our 2010 IS 250 has given us 30 mph highway mileage. I consider it very very good. see full Lexus IS review
2009 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD		 Excellent fuel economy... overall 24 mpg city and highway combined. As high as 32 mpg highway driving in Arizona mountains. see full Lexus IS review
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 Good highway fuel economy, can average 30+ mpg see full Lexus IS review
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 My real world economy has been 33 mpg hwy (not the computer figure, an optimistic 34.5-35)which is better than expected and slightly over 20 in city driving (not heavy traffic), also better than expected see full Lexus IS review
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 Good fuel economy for a 1600kg car with AWD. see full Lexus IS review
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 At around 200hp, it isnt the fastest luxury sedan. However, on my roadtrip across the eastern / mid eastern USA I was able to get ~33 ish mpg (computer reported) on flat terrain and premium fuel. City mpg is what I expect,22-25ish. But I think it is great as a long distance comfortable vehicle. see full Lexus IS review
Lexus IS Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 Wish it got better fuel economy for such a small car and engine... Sticker is 21/29, I'm averaging 27MPG (computer read); avg on hwy is about 33-34 mpg while city is about 19-23mpg. Engine variety would help, a 4 cyl + turbo or something, but toyota/lexus isn't exactly known for that. see full Lexus IS review
2002 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 For a small, relatively modestly powered car, it gets poor economy. Corvettes and most Porsches get better economy. see full Lexus IS review