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Infiniti QX vs. Mercedes-Benz SLK MPG

Chart is based on 7 fuel economy reports for the Infiniti QX and 18 fuel economy reports for the Mercedes-Benz SLK.

Infiniti QX MPG

Infiniti QX Infiniti QX 2008 13.7 MPG Highway Percentage 44 percent Infiniti QX Infiniti QX 2006 17.4 MPG Highway Percentage 43 percent Infiniti QX Infiniti QX 2005 14.6 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
2008 4dr SUV 320-horsepower 5.6L V8
5-speed automatic 4WD w/low range		 flat med light 7 15 34 44 63 13.7  
2006 4dr SUV 315-horsepower 5.6L V8
5-speed automatic 4WD w/low range		 flat v.lt none 57 0 0 43 100 17.4  
2005 4dr SUV 315-horsepower 5.6L V8
5-speed automatic 4WD w/low range		 flat light light 15 33 3 48 97 14.6  

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

Mercedes-Benz SLK MPG

Mercedes-Benz SLK Mercedes-Benz SLK 2009 21.8 MPG Highway Percentage 70 percent Mercedes-Benz SLK Mercedes-Benz SLK 2009 21.0 MPG Highway Percentage 50 percent Mercedes-Benz SLK Mercedes-Benz SLK 2008 25.5 MPG Highway Percentage 80 percent Mercedes-Benz SLK Mercedes-Benz SLK 2007 25.6 MPG Highway Percentage 68 percent Mercedes-Benz SLK Mercedes-Benz SLK 2006 23.4 MPG Highway Percentage 85 percent Mercedes-Benz SLK Mercedes-Benz SLK 2006 24.7 MPG Highway Percentage 60 percent Mercedes-Benz SLK Mercedes-Benz SLK 2005 23.2 MPG Highway Percentage 53 percent Mercedes-Benz SLK Mercedes-Benz SLK 2005 24.0 MPG Highway Percentage 90 percent Mercedes-Benz SLK Mercedes-Benz SLK 2003 26.2 MPG Highway Percentage 79 percent Mercedes-Benz SLK Mercedes-Benz SLK 2001 25.3 MPG Highway Percentage 50 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
2009 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD		 flat med light 0 10 20 70 100 21.8  
2009 2dr Hardtop conv. 300-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat med hvy 0 5 45 50 65 21.0  
2008 2dr Hardtop conv. 268-horsepower 3.5L V6
7-speed shiftable automatic RWD		 mtns lead light 5 5 10 80 75 25.5  
2007 2dr Hardtop conv. 228-horsepower 3.0L V6
7-speed shiftable automatic RWD		 flat med none 13 13 8 68 95 25.6  
2006 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD		 flat light light 2 10 3 85 70 23.4  
2006 2dr Hardtop conv. 228-horsepower 3.0L V6
7-speed shiftable automatic RWD		 flat med hvy 10 10 20 60 70 24.7  
2005 2dr Hardtop conv. 268-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat med light 10 25 12 53 66 23.2  
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2005 2dr Hardtop conv. 268-horsepower 3.5L V6
6-speed manual RWD		 flat lead none 0 0 10 90 75 24.0  
2003 2dr Hardtop conv. supercharged 192hp 2.3L I4
5-speed shiftable automatic RWD		 flat med light 0 5 16 79 72 26.2  
2001 2dr Hardtop conv. 215-horsepower 3.2L V6
5-speed shiftable automatic RWD		 flat med light 1 15 35 50 63 25.3  

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

Infiniti QX vs. Mercedes-Benz SLK 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 Infiniti QX and Mercedes-Benz SLK'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 Infiniti models and Mercedes-Benz models.

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

Infiniti QX Real Gas Mileage: Cons
YearBody/PowertrainComment
2008 4dr SUV 320-horsepower 5.6L V8
5-speed automatic 4WD w/low range		 It is what it is....we get 15 MPG on average (4wd). I can get 17 on the highway. see full Infiniti QX review
 

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

Mercedes-Benz SLK Real Gas Mileage: Cons
YearBody/PowertrainComment
2005 2dr Hardtop conv. 355-horsepower 5.4L V8
7-speed shiftable automatic RWD		 clearly AMG was not thinking gas mileage at all when they built this engine see full Mercedes-Benz SLK review