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

Chart is based on 22 fuel economy reports for the Mercedes-Benz S-Class and 81 fuel economy reports for the Infiniti FX.

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  
Looking for a warranty? Get a quote.
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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Infiniti FX km/L

Infiniti FX Infiniti FX 2012 38.5 MPG Highway Percentage 20 percent Infiniti FX Infiniti FX 2011 51.9 MPG Highway Percentage 33 percent Infiniti FX Infiniti FX 2010 35.0 MPG Highway Percentage 32 percent Infiniti FX Infiniti FX 2010 42.8 MPG Highway Percentage 55 percent Infiniti FX Infiniti FX 2009 46.7 MPG Highway Percentage 42 percent Infiniti FX Infiniti FX 2008 45.0 MPG Highway Percentage 19 percent Infiniti FX Infiniti FX 2008 40.6 MPG Highway Percentage 41 percent Infiniti FX Infiniti FX 2007 44.7 MPG Highway Percentage 20 percent Infiniti FX Infiniti FX 2007 44.9 MPG Highway Percentage 31 percent Infiniti FX Infiniti FX 2006 42.4 MPG Highway Percentage 95 percent Infiniti FX Infiniti FX 2006 44.4 MPG Highway Percentage 48 percent Infiniti FX Infiniti FX 2005 5.7 MPG Highway Percentage 5 percent Infiniti FX Infiniti FX 2005 37.2 MPG Highway Percentage 67 percent Infiniti FX Infiniti FX 2005 43.3 MPG Highway Percentage 53 percent Infiniti FX Infiniti FX 2004 43.0 MPG Highway Percentage 40 percent Infiniti FX Infiniti FX 2004 40.9 MPG Highway Percentage 34 percent Infiniti FX Infiniti FX 2004 39.0 MPG Highway Percentage 35 percent Infiniti FX Infiniti FX 2003 37.9 MPG Highway Percentage 32 percent Infiniti FX Infiniti FX 2003 60.9 MPG Highway Percentage 27 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
2012 4dr SUV 303-horsepower 3.5L V6
7-speed shiftable automatic AWD
flat med light 0 0 80 20 70 38.5  
2011 4dr SUV 303-horsepower 3.5L V6
7-speed shiftable automatic AWD
flat light light 33 33 0 33 60 51.9  
2010 4dr SUV 390-horsepower 5.0L V8
7-speed shiftable automatic AWD
flat lead hvy 20 22 27 32 78 35.0  
2010 4dr SUV 303-horsepower 3.5L V6
7-speed shiftable automatic AWD
mtns lead light 3 0 43 55 73 42.8  
2009 4dr SUV 303-horsepower 3.5L V6
7-speed shiftable automatic RWD
flat light light 10 45 3 42 70 46.7  
2008 4dr SUV 275-horsepower 3.5L V6
5-speed shiftable automatic RWD
flat light none 0 81 0 19 60 45.0  
2008 4dr SUV 275-horsepower 3.5L V6
5-speed shiftable automatic AWD
flat med light 24 18 18 41 63 40.6  
Looking for a warranty? Get a quote.
2007 4dr SUV 275-horsepower 3.5L V6
5-speed shiftable automatic RWD
flat med light 0 0 80 20 80 44.7  
2007 4dr SUV 275-horsepower 3.5L V6
5-speed shiftable automatic AWD
flat med light 23 23 24 31 65 44.9  
2006 4dr SUV 320-horsepower 4.5L V8
5-speed shiftable automatic AWD
flat light hvy 0 0 5 95 80 42.4  
2006 4dr SUV 280-horsepower 3.5L V6
5-speed shiftable automatic AWD
flat med light 8 10 34 48 65 44.4  
2005 4dr SUV 315-horsepower 4.5L V8
5-speed shiftable automatic AWD
flat med light 5 80 10 5 120 5.7  
2005 4dr SUV 280-horsepower 3.5L V6
5-speed shiftable automatic RWD
flat light none 0 0 33 67 60 37.2  
2005 4dr SUV 280-horsepower 3.5L V6
5-speed shiftable automatic AWD
flat med none 10 8 29 53 71 43.3  
2004 4dr SUV 315-horsepower 4.5L V8
5-speed shiftable automatic AWD
flat med hvy 3 16 41 40 71 43.0  
2004 4dr SUV 280-horsepower 3.5L V6
5-speed shiftable automatic RWD
flat med hvy 13 31 23 34 66 40.9  
2004 4dr SUV 280-horsepower 3.5L V6
5-speed shiftable automatic AWD
hills lead light 9 30 26 35 70 39.0  
2003 4dr SUV 315-horsepower 4.5L V8
5-speed shiftable automatic AWD
flat med light 7 14 47 32 73 37.9  
2003 4dr SUV 280-horsepower 3.5L V6
5-speed shiftable automatic RWD
flat med light 9 18 45 27 60 60.9  

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This page shows only averages. See all the Infiniti FX fuel economy data.

Mercedes-Benz S-Class vs. Infiniti FX 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 Mercedes-Benz S-Class and Infiniti FX'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 Sedans, Coupes, and Convertibles.
See TrueDelta's information for all Mercedes-Benz models and Infiniti models.

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
 

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

Infiniti FX Real Gas Mileage: Pros
YearBody/PowertrainComment
2011 4dr SUV 303-horsepower 3.5L V6
7-speed shiftable automatic RWD
25 mpg on our last trip, cruising between 75-80 mph. see full Infiniti FX review
Infiniti FX Real Gas Mileage: Cons
YearBody/PowertrainComment
2008 4dr SUV 275-horsepower 3.5L V6
5-speed shiftable automatic AWD
Averaging 18 mpg. Not horrible, but not great either. With gas prices having doubled since the start of my lease, I try and minimize driving outside my commute and necessary errands. see full Infiniti FX review
2004 4dr SUV 315-horsepower 4.5L V8
5-speed shiftable automatic AWD
18 miles per gallon on average. see full Infiniti FX review