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Mazda CX-9 vs. Mercedes-Benz GL MPG

Chart is based on 335 fuel economy reports for the Mazda CX-9 and 48 fuel economy reports for the Mercedes-Benz GL.

Mazda CX-9 MPG

Mazda CX-9 Mazda CX-9 2019 25.2 MPG Highway Percentage 50 percent Mazda CX-9 Mazda CX-9 2017 19.7 MPG Highway Percentage 40 percent Mazda CX-9 Mazda CX-9 2013 21.1 MPG Highway Percentage 5 percent Mazda CX-9 Mazda CX-9 2012 20.2 MPG Highway Percentage 97 percent Mazda CX-9 Mazda CX-9 2012 16.5 MPG Highway Percentage 15 percent Mazda CX-9 Mazda CX-9 2011 17.1 MPG Highway Percentage 21 percent Mazda CX-9 Mazda CX-9 2011 19.3 MPG Highway Percentage 55 percent Mazda CX-9 Mazda CX-9 2010 18.4 MPG Highway Percentage 37 percent Mazda CX-9 Mazda CX-9 2010 14.5 MPG Highway Percentage 29 percent Mazda CX-9 Mazda CX-9 2009 18.7 MPG Highway Percentage 14 percent Mazda CX-9 Mazda CX-9 2009 17.9 MPG Highway Percentage 50 percent Mazda CX-9 Mazda CX-9 2008 19.7 MPG Highway Percentage 68 percent Mazda CX-9 Mazda CX-9 2008 19.0 MPG Highway Percentage 54 percent Mazda CX-9 Mazda CX-9 2007 19.7 MPG Highway Percentage 43 percent Mazda CX-9 Mazda CX-9 2007 18.3 MPG Highway Percentage 54 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
2019 4dr SUV turbocharged 250hp 2.5L I4
6-speed shiftable automatic AWD		 flat light none 0 50 0 50 50 25.2  
2017 4dr SUV turbocharged 250hp 2.5L I4
6-speed shiftable automatic AWD		 flat med none 5 5 50 40 75 19.7  
2013 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light light 0 95 0 5 70 21.1  
2012 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 hills med none 0 0 4 97 78 20.2  
2012 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat med light 0 5 80 15 70 16.5  
2011 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat med hvy 44 20 15 21 64 17.1  
2011 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light light 0 10 35 55 63 19.3  
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2010 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat light light 33 17 13 37 63 18.4  
2010 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 hills light none 6 48 17 29 73 14.5  
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 hills med light 5 19 61 14 62 18.7  
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat med none 7 26 18 50 66 17.9  
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat med light 4 15 13 68 72 19.7  
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light light 6 15 25 54 70 19.0  
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic FWD		 flat med hvy 13 19 25 43 67 19.7  
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic AWD		 flat light none 10 20 16 54 69 18.3  

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This page shows only averages. See all the Mazda CX-9 fuel economy data.

Mercedes-Benz GL MPG

Mercedes-Benz GL Mercedes-Benz GL 2014 27.3 MPG Highway Percentage 80 percent Mercedes-Benz GL Mercedes-Benz GL 2011 15.0 MPG Highway Percentage 30 percent Mercedes-Benz GL Mercedes-Benz GL 2010 24.0 MPG Highway Percentage 46 percent Mercedes-Benz GL Mercedes-Benz GL 2009 22.5 MPG Highway Percentage 27 percent Mercedes-Benz GL Mercedes-Benz GL 2009 18.0 MPG Highway Percentage 30 percent Mercedes-Benz GL Mercedes-Benz GL 2008 22.4 MPG Highway Percentage 41 percent Mercedes-Benz GL Mercedes-Benz GL 2008 17.0 MPG Highway Percentage 30 percent Mercedes-Benz GL Mercedes-Benz GL 2008 17.3 MPG Highway Percentage 35 percent Mercedes-Benz GL Mercedes-Benz GL 2007 25.3 MPG Highway Percentage 64 percent Mercedes-Benz GL Mercedes-Benz GL 2007 16.0 MPG Highway Percentage 42 percent Mercedes-Benz GL Mercedes-Benz GL 2007 17.4 MPG Highway Percentage 38 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
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  

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

Mazda CX-9 vs. Mercedes-Benz GL 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 Mazda CX-9 and Mercedes-Benz GL'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 Mazda models and Mercedes-Benz models.

What Our Members Are Saying about the Real Gas Mileage of the Mazda CX-9

Mazda CX-9 Real Gas Mileage: Pros
YearBody/PowertrainComment
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 avg 18mpg for a large vehicle see full Mazda CX-9 review
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic FWD		 Uses regular gas. I have been getting about 19-20 MPG with mostly rush hour highway driving. see full Mazda CX-9 review
Mazda CX-9 Real Gas Mileage: Cons
YearBody/PowertrainComment
2012 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 EPA ratings of 17/24, but I've averaged barely 18 overall in my first 1200 miles...hoping for a slight improvement after break-in. UPDATE- as of 02/11/2013, I am averaging 20-21mpg overall with 4200 miles on the clock. On a recent 380-mile interstate trip, I managed 22.8mpg with the cruise set at 80mph. see full Mazda CX-9 review
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 A bit lower than the competitions see full Mazda CX-9 review
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 in city gives about 13-14 mpg. Highway is still good. I can get 21-23 mpg on highways see full Mazda CX-9 review
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 The AWD feature does use more gas than a FWD vehicle. Averages about 17-18 city and about 20 highway. see full Mazda CX-9 review
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 The fuel economy was lower than for the Murano. The plus is that it uses regular. see full Mazda CX-9 review
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 too low see full Mazda CX-9 review
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic AWD		 Could be better. I have seen 24mpg as a high on the highway....but usually closer to 21-22. Around town is 17-18. see full Mazda CX-9 review
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic AWD		 Around town mileage is low. see full Mazda CX-9 review
 

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

Mercedes-Benz GL Real Gas Mileage: Pros
YearComment
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
YearBody/PowertrainComment
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
YearBody/PowertrainComment
2010 4dr SUV 335-horsepower 4.7L V8
7-speed shiftable automatic AWD		 15 mpg average. premium fuel. see full Mercedes-Benz GL review