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Mercedes-Benz SL vs. Acura RDX MPG

Chart is based on 8 fuel economy reports for the Mercedes-Benz SL and 252 fuel economy reports for the Acura RDX.

Mercedes-Benz SL MPG

Mercedes-Benz SL Mercedes-Benz SL 2013 23.4 MPG Highway Percentage 48 percent Mercedes-Benz SL Mercedes-Benz SL 2007 21.0 MPG Highway Percentage 30 percent Mercedes-Benz SL Mercedes-Benz SL 2006 18.0 MPG Highway Percentage 5 percent Mercedes-Benz SL Mercedes-Benz SL 2000 19.1 MPG Highway Percentage 35 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
2013 2dr Hardtop conv. turbocharged 429hp 4.7L V8
7-speed shiftable automatic RWD		 flat light hvy 6 9 37 48 75 23.4  
2007 2dr Hardtop conv. 382-horsepower 5.5L V8
7-speed shiftable automatic RWD		 hills light none 10 10 50 30 70 21.0  
2006 2dr Hardtop conv. 302-horsepower 5.0L V8
7-speed shiftable automatic RWD		 flat med none 0 5 90 5 60 18.0  
2000 2dr Hardtop conv. 302-horsepower 5.0L V8
5-speed automatic RWD		 flat med none 15 20 30 35 60 19.1  

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

Acura RDX MPG

Acura RDX Acura RDX 2014 29.1 MPG Highway Percentage 83 percent Acura RDX Acura RDX 2013 25.1 MPG Highway Percentage 66 percent Acura RDX Acura RDX 2012 20.0 MPG Highway Percentage 5 percent Acura RDX Acura RDX 2011 19.4 MPG Highway Percentage 30 percent Acura RDX Acura RDX 2010 22.1 MPG Highway Percentage 90 percent Acura RDX Acura RDX 2009 18.0 MPG Highway Percentage 40 percent Acura RDX Acura RDX 2008 19.0 MPG Highway Percentage 49 percent Acura RDX Acura RDX 2007 19.6 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
2014 4dr SUV 273-horsepower 3.5L V6
6-speed shiftable automatic AWD		 hills med none 0 6 11 83 93 29.1  
2013 4dr SUV 273-horsepower 3.5L V6
6-speed shiftable automatic FWD		 flat light hvy 0 34 0 66 70 25.1  
2012 4dr SUV turbocharged 240hp 2.3L I4
5-speed shiftable automatic FWD		 flat light hvy 10 76 10 5 45 20.0  
2011 4dr SUV turbocharged 240hp 2.3L I4
5-speed shiftable automatic AWD		 flat light light 9 28 33 30 67 19.4  
2010 4dr SUV turbocharged 240hp 2.3L I4
5-speed shiftable automatic AWD		 mtns med none 5 3 3 90 60 22.1  
2009 4dr SUV turbocharged 240hp 2.3L I4
5-speed shiftable automatic AWD		 flat med none 0 50 10 40 60 18.0  
2008 4dr SUV turbocharged 240hp 2.3L I4
5-speed shiftable automatic AWD		 flat med light 5 26 20 49 69 19.0  
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2007 4dr SUV turbocharged 240hp 2.3L I4
5-speed shiftable automatic AWD		 flat light none 14 21 15 50 75 19.6  

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This page shows only averages. See all the Acura RDX fuel economy data.

Mercedes-Benz SL vs. Acura RDX 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 Mercedes-Benz SL and Acura RDX'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 Convertibles
See TrueDelta's information for all Mercedes-Benz models and Acura models.

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

Mercedes-Benz SL Real Gas Mileage: Pros
YearBody/PowertrainComment
2006 2dr Hardtop conv. supercharged 493hp 5.4L V8
5-speed shiftable automatic RWD		 Awful! Big V-8 gets approximately 14 mpg, if I'm lucky! see full Mercedes-Benz SL review
Mercedes-Benz SL Real Gas Mileage: Cons
YearBody/PowertrainComment
2002 2dr Hardtop conv. 302-horsepower 5.0L V8
5-speed automatic RWD		 Not great. I averaged about 16mpg in around town driving, about 22 on the freeways. Best mileage observed was in Wyoming, 24.5, coming downhill eastbound from the Grand Tetons. that said, people shouldn't buy this car expecting a Miata, in any way other than Two Doors and a Convertible Top. see full Mercedes-Benz SL review
 

What Our Members Are Saying about the Real Gas Mileage of the Acura RDX

Acura RDX Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr SUV turbocharged 240hp 2.3L I4
5-speed shiftable automatic AWD		 Turbo eats gas but provides for a fun ride see full Acura RDX review
2008 4dr SUV turbocharged 240hp 2.3L I4
5-speed shiftable automatic AWD		 Low for a 4-cylinder see full Acura RDX review
2007 4dr SUV turbocharged 240hp 2.3L I4
5-speed shiftable automatic AWD		 I average around 20 MPG, but it is not an economy car - well worth it for the performance see full Acura RDX review