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Infiniti G vs. Mercedes-Benz S-Class Fuel Economy (km/L)

Chart is based on 758 fuel economy reports for the Infiniti G and 22 fuel economy reports for the Mercedes-Benz S-Class.

Infiniti G km/L

Infiniti G Infiniti G 2013 51.9 MPG Highway Percentage 72 percent Infiniti G Infiniti G 2013 40.5 MPG Highway Percentage 41 percent Infiniti G Infiniti G 2012 60.1 MPG Highway Percentage 100 percent Infiniti G Infiniti G 2012 55.7 MPG Highway Percentage 70 percent Infiniti G Infiniti G 2011 49.0 MPG Highway Percentage 42 percent Infiniti G Infiniti G 2011 49.3 MPG Highway Percentage 49 percent Infiniti G Infiniti G 2011 60.5 MPG Highway Percentage 75 percent Infiniti G Infiniti G 2010 27.4 MPG Highway Percentage 68 percent Infiniti G Infiniti G 2010 51.6 MPG Highway Percentage 52 percent Infiniti G Infiniti G 2010 51.7 MPG Highway Percentage 58 percent Infiniti G Infiniti G 2010 42.3 MPG Highway Percentage 5 percent Infiniti G Infiniti G 2010 60.1 MPG Highway Percentage 70 percent Infiniti G Infiniti G 2009 54.5 MPG Highway Percentage 58 percent Infiniti G Infiniti G 2009 43.7 MPG Highway Percentage 31 percent Infiniti G Infiniti G 2009 57.6 MPG Highway Percentage 91 percent Infiniti G Infiniti G 2009 48.5 MPG Highway Percentage 33 percent Infiniti G Infiniti G 2009 35.3 MPG Highway Percentage 10 percent Infiniti G Infiniti G 2009 45.9 MPG Highway Percentage 58 percent Infiniti G Infiniti G 2009 47.9 MPG Highway Percentage 70 percent Infiniti G Infiniti G 2009 48.6 MPG Highway Percentage 48 percent Infiniti G Infiniti G 2008 49.1 MPG Highway Percentage 62 percent Infiniti G Infiniti G 2008 43.8 MPG Highway Percentage 34 percent Infiniti G Infiniti G 2008 43.9 MPG Highway Percentage 49 percent Infiniti G Infiniti G 2008 48.5 MPG Highway Percentage 35 percent Infiniti G Infiniti G 2008 44.8 MPG Highway Percentage 40 percent Infiniti G Infiniti G 2007 49.3 MPG Highway Percentage 37 percent Infiniti G Infiniti G 2007 49.4 MPG Highway Percentage 49 percent Infiniti G Infiniti G 2007 34.9 MPG Highway Percentage 47 percent Infiniti G Infiniti G 2007 43.6 MPG Highway Percentage 50 percent Infiniti G Infiniti G 2007 26.7 MPG Highway Percentage 5 percent Infiniti G Infiniti G 2006 49.6 MPG Highway Percentage 43 percent Infiniti G Infiniti G 2006 47.0 MPG Highway Percentage 48 percent Infiniti G Infiniti G 2006 48.8 MPG Highway Percentage 55 percent Infiniti G Infiniti G 2006 47.6 MPG Highway Percentage 40 percent Infiniti G Infiniti G 2006 49.6 MPG Highway Percentage 56 percent Infiniti G Infiniti G 2005 56.5 MPG Highway Percentage 55 percent Infiniti G Infiniti G 2005 44.7 MPG Highway Percentage 30 percent Infiniti G Infiniti G 2005 38.7 MPG Highway Percentage 44 percent Infiniti G Infiniti G 2005 49.8 MPG Highway Percentage 26 percent Infiniti G Infiniti G 2005 53.8 MPG Highway Percentage 46 percent Infiniti G Infiniti G 2004 9.9 MPG Highway Percentage 60 percent Infiniti G Infiniti G 2004 49.2 MPG Highway Percentage 60 percent Infiniti G Infiniti G 2004 42.3 MPG Highway Percentage 41 percent Infiniti G Infiniti G 2004 44.4 MPG Highway Percentage 38 percent Infiniti G Infiniti G 2004 43.1 MPG Highway Percentage 21 percent Infiniti G Infiniti G 2004 44.6 MPG Highway Percentage 43 percent Infiniti G Infiniti G 2004 47.0 MPG Highway Percentage 70 percent Infiniti G Infiniti G 2003 57.6 MPG Highway Percentage 68 percent Infiniti G Infiniti G 2003 32.7 MPG Highway Percentage 47 percent Infiniti G Infiniti G 2003 32.0 MPG Highway Percentage 35 percent Infiniti G Infiniti G 2003 49.3 MPG Highway Percentage 49 percent Infiniti G Infiniti G 2003 10.5 MPG Highway Percentage 85 percent Infiniti G Infiniti G 2002 67.6 MPG Highway Percentage 20 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
2013 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic RWD		 flat med light 3 13 13 72 69 51.9  
2013 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 flat med none 26 27 5 41 65 40.5  
2012 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic RWD		 flat light light 0 0 0 100 75 60.1  
2012 4dr Sedan 218-horsepower 2.5L V6
7-speed shiftable automatic AWD		 flat light none 0 30 0 70 60 55.7  
2011 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic RWD		 flat light light 9 24 25 42 66 49.0  
2011 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 flat med light 2 2 46 49 74 49.3  
2011 4dr Sedan 218-horsepower 2.5L V6
7-speed shiftable automatic RWD		 flat med light 3 2 21 75 74 60.5  
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2010 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic RWD		 flat med light 8 17 8 68 106 27.4  
2010 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 flat med none 3 12 33 52 72 51.6  
2010 4dr Sedan 328-horsepower 3.7L V6
6-speed manual RWD		 flat med light 7 28 7 58 73 51.7  
2010 2dr Hardtop conv. 325-horsepower 3.7L V6
7-speed shiftable automatic RWD		 flat lead none 5 10 80 5 60 42.3  
2010 2dr Coupe 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 flat med none 4 13 13 70 80 60.1  
2009 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic RWD		 flat med light 13 19 10 58 69 54.5  
2009 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 flat med light 6 30 34 31 63 43.7  
2009 4dr Sedan 328-horsepower 3.7L V6
6-speed manual RWD		 flat light light 0 9 0 91 70 57.6  
2009 2dr Hardtop conv. 325-horsepower 3.7L V6
7-speed shiftable automatic RWD		 flat lead hvy 17 33 17 33 75 48.5  
2009 2dr Hardtop conv. 325-horsepower 3.7L V6
6-speed manual RWD		 flat lead none 10 10 70 10 70 35.3  
2009 2dr Coupe 330-horsepower 3.7L V6
7-speed shiftable automatic RWD		 flat med light 10 20 12 58 73 45.9  
2009 2dr Coupe 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 flat light light 10 10 10 70 61 47.9  
2009 2dr Coupe 330-horsepower 3.7L V6
6-speed manual RWD		 hills med none 2 26 24 48 67 48.6  
2008 4dr Sedan 306-horsepower 3.5L V6
6-speed manual RWD		 flat med hvy 5 14 20 62 79 49.1  
2008 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 10 23 33 34 73 43.8  
2008 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat light light 12 14 26 49 68 43.9  
2008 2dr Coupe 330-horsepower 3.7L V6
6-speed manual RWD		 flat light light 1 11 53 35 71 48.5  
2008 2dr Coupe 330-horsepower 3.7L V6
5-speed shiftable automatic RWD		 flat lead light 9 29 22 40 74 44.8  
2007 4dr Sedan 306-horsepower 3.5L V6
6-speed manual RWD		 flat med light 10 29 24 37 68 49.3  
2007 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 10 19 23 49 71 49.4  
2007 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat med light 7 20 27 47 79 34.9  
2007 2dr Coupe 293-horsepower 3.5L V6
6-speed manual RWD		 flat med none 5 25 20 50 70 43.6  
2007 2dr Coupe 275-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat lead hvy 0 93 3 5 70 26.7  
2006 4dr Sedan 298-horsepower 3.5L V6
6-speed manual RWD		 flat med none 13 17 27 43 72 49.6  
2006 4dr Sedan 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 9 24 18 48 69 47.0  
2006 4dr Sedan 280-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat light light 5 16 24 55 71 48.8  
2006 2dr Coupe 298-horsepower 3.5L V6
6-speed manual RWD		 flat med light 8 29 23 40 65 47.6  
2006 2dr Coupe 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 7 16 21 56 69 49.6  
2005 4dr Sedan 298-horsepower 3.5L V6
6-speed manual RWD		 flat med light 5 20 20 55 60 56.5  
2005 4dr Sedan 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 hills med light 2 20 48 30 65 44.7  
2005 4dr Sedan 280-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat med none 10 31 15 44 85 38.7  
2005 2dr Coupe 298-horsepower 3.5L V6
6-speed manual RWD		 flat med light 8 24 42 26 70 49.8  
2005 2dr Coupe 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat light none 7 28 19 46 69 53.8  
2004 4dr Sedan 280-horsepower 3.5L V6
6-speed manual RWD		 flat light none 12 16 12 60 98 9.9  
2004 4dr Sedan 260-horsepower 3.5L V6
6-speed manual RWD		 flat med light 4 21 15 60 66 49.2  
2004 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 17 31 10 41 68 42.3  
2004 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat light none 11 21 30 38 67 44.4  
2004 2dr Coupe 280-horsepower 3.5L V6
6-speed manual RWD		 flat med light 12 36 31 21 66 43.1  
2004 2dr Coupe 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med none 28 18 10 43 63 44.6  
2004 2dr Coupe 260-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med none 10 10 10 70 60 47.0  
2003 4dr Sedan 260-horsepower 3.5L V6
6-speed manual RWD		 hills light hvy 0 19 14 68 71 57.6  
2003 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 9 15 29 47 85 32.7  
2003 2dr Coupe 280-horsepower 3.5L V6
6-speed manual RWD		 flat med light 11 28 26 35 92 32.0  
2003 2dr Coupe 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 5 23 23 49 70 49.3  
2003 2dr Coupe 260-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat light none 5 5 5 85 100 10.5  
2002 4dr Sedan 145-horsepower 2.0L I4
5-speed manual RWD		 flat v.lt none 5 10 65 20 65 67.6  

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This page shows only averages. See all the Infiniti G 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.

Infiniti G 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 Infiniti G 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 Infiniti models and Mercedes-Benz models.

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

Infiniti G Real Gas Mileage: Pros
YearBody/PowertrainComment
2007 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic AWD		 My average for the life of the car is 21MPG. Not too bad for a car with this power and my lead foot. see full Infiniti G review
Infiniti G Real Gas Mileage: Cons
YearBody/PowertrainComment
2013 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic RWD		 Can live with it because of the performance, but wish the mileage was better and premium fuel was not required. see full Infiniti G review
2013 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 What the powertrain giveth, the fuel economy taketh away. Nissan's VQ engines just seem to be thirsty - if you commute in heavy traffic, especially for short trips, don't be surprised at 15.5-16 mpg tanks. I don't know what mostly-highway commuting would look like, but maybe 22-25 mpg depending on driving style. see full Infiniti G review
2010 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 To be honest, it is exactly what I expected, so no real beefs with it. That said, if you are looking for a car that gets better than 19 or so combined, this is not it. Decent freeway miles (24-27/g) but in city it is hard to beat 16/g. see full Infiniti G review
2010 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 Fuel economy is poor - about 19 MPG average. see full Infiniti G review
2009 2dr Coupe 330-horsepower 3.7L V6
7-speed shiftable automatic RWD		 You do not buy a performance car and expect to get good gas mileage. At a 5 mpg or greater difference from my last car, it is taking some getting used too. see full Infiniti G review
2009 2dr Coupe 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 average 18 in town 24 highway. see full Infiniti G review
2009 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 With such a large displaced engine and so much power you will find that you will have so-so mpg if you drive mainly in the city like I do. Especially if you are a "spirited" driver like I tend to be. I am averaging about 14-16mpg 95% city. On the highway its a different story. I have averaged up to 28mpg @ 78mph, I kind of wish I drove more on the highway. see full Infiniti G review
2008 4dr Sedan 306-horsepower 3.5L V6
6-speed manual RWD		 While not terrible, ~20mpg is by no means phenomenal. Relatively comparable cars get ~23-27mpg, but typically also have smaller engines which explains a good portion of the difference. see full Infiniti G review
2008 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Takes a lot of fuel... 14L/100km about. see full Infiniti G review
2008 4dr Sedan 306-horsepower 3.5L V6
5-speed shiftable automatic RWD		 Not too great. My average is 19 - 20 mpg, mostly city. see full Infiniti G 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