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Mazda CX-9 vs. Mercedes-Benz S-Class Fuel Economy (km/L)

Chart is based on 335 fuel economy reports for the Mazda CX-9 and 22 fuel economy reports for the Mercedes-Benz S-Class.

Mazda CX-9 km/L

Mazda CX-9 Mazda CX-9 2019 59.3 MPG Highway Percentage 50 percent Mazda CX-9 Mazda CX-9 2017 46.3 MPG Highway Percentage 40 percent Mazda CX-9 Mazda CX-9 2013 49.5 MPG Highway Percentage 5 percent Mazda CX-9 Mazda CX-9 2012 47.6 MPG Highway Percentage 97 percent Mazda CX-9 Mazda CX-9 2012 38.8 MPG Highway Percentage 15 percent Mazda CX-9 Mazda CX-9 2011 34.6 MPG Highway Percentage 21 percent Mazda CX-9 Mazda CX-9 2011 45.3 MPG Highway Percentage 55 percent Mazda CX-9 Mazda CX-9 2010 43.2 MPG Highway Percentage 37 percent Mazda CX-9 Mazda CX-9 2010 34.0 MPG Highway Percentage 29 percent Mazda CX-9 Mazda CX-9 2009 44.0 MPG Highway Percentage 14 percent Mazda CX-9 Mazda CX-9 2009 42.1 MPG Highway Percentage 50 percent Mazda CX-9 Mazda CX-9 2008 46.3 MPG Highway Percentage 68 percent Mazda CX-9 Mazda CX-9 2008 43.1 MPG Highway Percentage 54 percent Mazda CX-9 Mazda CX-9 2007 46.4 MPG Highway Percentage 43 percent Mazda CX-9 Mazda CX-9 2007 42.4 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 km/L
2019 4dr SUV turbocharged 250hp 2.5L I4
6-speed shiftable automatic AWD		 flat light none 0 50 0 50 50 59.3  
2017 4dr SUV turbocharged 250hp 2.5L I4
6-speed shiftable automatic AWD		 flat med none 5 5 50 40 75 46.3  
2013 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light light 0 95 0 5 70 49.5  
2012 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 hills med none 0 0 4 97 78 47.6  
2012 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat med light 0 5 80 15 70 38.8  
2011 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat med hvy 44 20 15 21 64 34.6  
2011 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light light 0 10 35 55 63 45.3  
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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 43.2  
2010 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 hills light none 6 48 17 29 73 34.0  
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 hills med light 5 19 61 14 62 44.0  
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat med none 7 26 18 50 66 42.1  
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat med light 4 15 13 68 72 46.3  
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light light 6 15 25 54 70 43.1  
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic FWD		 flat med hvy 13 19 25 43 67 46.4  
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic AWD		 flat light none 10 20 16 54 69 42.4  

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

Mercedes-Benz S-Class km/L

Mercedes-Benz S-Class Mercedes-Benz S-Class 2007 51.3 MPG Highway Percentage 45 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2007 58.8 MPG Highway Percentage 70 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2006 58.0 MPG Highway Percentage 98 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2006 55.3 MPG Highway Percentage 80 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2006 54.1 MPG Highway Percentage 85 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2004 46.7 MPG Highway Percentage 47 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2004 56.5 MPG Highway Percentage 80 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2003 27.4 MPG Highway Percentage 68 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2003 41.5 MPG Highway Percentage 71 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2002 45.9 MPG Highway Percentage 29 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2001 5.0 MPG Highway Percentage 0 percent Mercedes-Benz S-Class Mercedes-Benz S-Class 2000 56.3 MPG Highway Percentage 82 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 km/L
2007 4dr Sedan, ext. 382-horsepower 5.5L V8
7-speed shiftable automatic RWD		 flat med none 5 15 35 45 62 51.3  
2007 4dr Sedan, ext. 382-horsepower 5.5L V8
7-speed shiftable automatic AWD		 flat light none 10 10 10 70 65 58.8  
2006 4dr Sedan, ext. 302-horsepower 5.0L V8
7-speed shiftable automatic RWD		 flat med hvy 1 1 0 98 78 58.0  
2006 4dr Sedan, ext. 302-horsepower 5.0L V8
5-speed shiftable automatic AWD		 flat light none 0 0 20 80 65 55.3  
2006 4dr Sedan, ext. 275-horsepower 4.3L V8
7-speed shiftable automatic RWD		 flat light hvy 0 15 0 85 60 54.1  
2004 4dr Sedan, ext. 302-horsepower 5.0L V8
5-speed shiftable automatic AWD		 flat med none 1 45 8 47 80 46.7  
2004 4dr Sedan, ext. 275-horsepower 4.3L V8
7-speed shiftable automatic RWD		 flat med hvy 0 2 18 80 75 56.5  
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2003 4dr Sedan, ext. turbocharged 493hp 5.5L V12
5-speed shiftable automatic RWD		 flat light light 7 11 15 68 108 27.4  
2003 4dr Sedan, ext. 275-horsepower 4.3L V8
5-speed shiftable automatic RWD		 flat med hvy 6 12 12 71 70 41.5  
2002 4dr Sedan, ext. 275-horsepower 4.3L V8
5-speed shiftable automatic RWD		 flat med hvy 13 6 54 29 68 45.9  
2001 4dr Sedan, ext. 302-horsepower 5.0L V8
5-speed shiftable automatic RWD		 flat med none 20 80 0 0 0 5.0  
2000 4dr Sedan, ext. 275-horsepower 4.3L V8
5-speed shiftable automatic RWD		 flat v.lt light 0 7 11 82 62 56.3  

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

Mazda CX-9 vs. Mercedes-Benz S-Class Fuel Economy (km/L)

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 S-Class's where a car was driven. So you can get an idea of their real-world km/L 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
 

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

Mercedes-Benz S-Class Real Gas Mileage: Pros
YearBody/PowertrainComment
2007 4dr Sedan, ext. 382-horsepower 5.5L V8
7-speed shiftable automatic RWD		 Since my driving is about 50-50 city and highway, I average about 20-21 mpg, using premium fuel. All highway is 29-30mpg and all city is 14-15mpg. see full Mercedes-Benz S-Class review
2007 0 While on long trips at 70-80mph I average 32mpg around town it never goes better than 24mpg. Easy on the pedal sure shows results but fully loaded the thing shifts like a two door sports. see full Mercedes-Benz S-Class review
Mercedes-Benz S-Class Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 4dr Sedan turbocharged 232hp 3.0L V6 Diesel
7-speed shiftable automatic RWD		 Very, very expensive see full Mercedes-Benz S-Class review
2007 4dr Sedan, ext. 382-horsepower 5.5L V8
7-speed shiftable automatic RWD		 Driving it in a lot of stop and go traffic it drinks gas. see full Mercedes-Benz S-Class review
2007 0 Fuel cost are a killer and servicing requires finding an allternative to the Mercedes Garage see full Mercedes-Benz S-Class review
2001 4dr Sedan, ext. 302-horsepower 5.0L V8
5-speed shiftable automatic RWD		 20l/100km but its still worth it see full Mercedes-Benz S-Class review