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Lexus GS vs. Mercedes-Benz SL MPG

Chart is based on 34 fuel economy reports for the Lexus GS and 8 fuel economy reports for the Mercedes-Benz SL.

Lexus GS MPG

Lexus GS Lexus GS 2013 29.1 MPG Highway Percentage 90 percent Lexus GS Lexus GS 2010 26.8 MPG Highway Percentage 90 percent Lexus GS Lexus GS 2008 21.4 MPG Highway Percentage 20 percent Lexus GS Lexus GS 2008 24.1 MPG Highway Percentage 57 percent Lexus GS Lexus GS 2008 23.5 MPG Highway Percentage 53 percent Lexus GS Lexus GS 2008 25.0 MPG Highway Percentage 28 percent Lexus GS Lexus GS 2007 25.3 MPG Highway Percentage 55 percent Lexus GS Lexus GS 2007 24.9 MPG Highway Percentage 55 percent Lexus GS Lexus GS 2006 20.8 MPG Highway Percentage 52 percent Lexus GS Lexus GS 2006 24.5 MPG Highway Percentage 35 percent Lexus GS Lexus GS 2006 20.0 MPG Highway Percentage 35 percent Lexus GS Lexus GS 2005 20.4 MPG Highway Percentage 20 percent Lexus GS Lexus GS 2003 22.1 MPG Highway Percentage 60 percent Lexus GS Lexus GS 2001 22.9 MPG Highway Percentage 50 percent Lexus GS Lexus GS 2000 23.0 MPG Highway Percentage 25 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 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD		 flat light light 5 5 0 90 75 29.1  
2010 4dr Sedan 303-horsepower 3.5L V6
6-speed shiftable automatic AWD		 flat med none 0 0 10 90 75 26.8  
2008 4dr Sedan 342-horsepower 4.6L V8
8-speed shiftable automatic RWD		 flat med light 50 20 10 20 100 21.4  
2008 4dr Sedan 303-horsepower 3.5L V6
6-speed shiftable automatic RWD		 flat light hvy 3 8 32 57 77 24.1  
2008 4dr Sedan 303-horsepower 3.5L V6
6-speed shiftable automatic AWD		 flat lead light 5 15 28 53 73 23.5  
2008 4dr Sedan 292-horsepower 3.5L V6 Hybrid
6-speed shiftable CVT RWD		 flat lead light 21 24 27 28 75 25.0  
2007 4dr Sedan 303-horsepower 3.5L V6
6-speed shiftable automatic RWD		 flat med light 7 22 17 55 72 25.3  
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2007 4dr Sedan 292-horsepower 3.5L V6 Hybrid
6-speed shiftable CVT RWD		 flat med light 10 18 17 55 78 24.9  
2006 4dr Sedan 300-horsepower 4.3L V8
6-speed shiftable automatic RWD		 flat light light 19 13 16 52 65 20.8  
2006 4dr Sedan 245-horsepower 3.0L V6
6-speed shiftable automatic RWD		 flat light light 16 22 28 35 70 24.5  
2006 4dr Sedan 245-horsepower 3.0L V6
6-speed shiftable automatic AWD		 flat light hvy 0 62 3 35 66 20.0  
2005 4dr Sedan 220-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 20 30 30 20 65 20.4  
2003 4dr Sedan 220-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med hvy 10 0 30 60 70 22.1  
2001 4dr Sedan 300-horsepower 4.3L V8
5-speed automatic RWD		 flat med light 0 0 50 50 75 22.9  
2000 4dr Sedan 220-horsepower 3.0L I6
5-speed automatic RWD		 flat v.lt none 25 25 25 25 40 23.0  

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This page shows only averages. See all the Lexus GS fuel economy data.

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.

Lexus GS vs. Mercedes-Benz SL 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 Lexus GS and Mercedes-Benz SL'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 Sedans
See TrueDelta's information for all Lexus models and Mercedes-Benz models.

TrueDelta Reviews the Real Gas Mileage of the Lexus GS

Lexus GS Real Gas Mileage: Cons
YearComment
In casual suburban driving the trip computer reported between 22 and 23 mpg, splitting the difference between the EPA ratings of 19 city and 26 highway. When I made the engine sing mpg dropped into the high teens. Slip into Eco and drive the GS like a Prius, and 25 is barely doable. Not bad for a 306-horsepower, two-ton, all-wheel-drive sedan. But the torquier Audi A6 3.0T and BMW 535i xDrive do a little better, especially on the highway. The Teuton's turbos help a little here, but most of the blame/credit goes to their respective transmissions. If and when Lexus fits the GS AWD with the eight-speed automatic already offered in the RWD car, it'll likely catch up. see full Lexus GS review
 

What Our Members Are Saying about the Real Gas Mileage of the Lexus GS

Lexus GS Real Gas Mileage: Pros
YearBody/PowertrainComment
2009 4dr Sedan 303-horsepower 3.5L V6
6-speed shiftable automatic RWD		 I have been averaging 26 MPG (indicated) in mixed suburban and highway driving, which I think is pretty good. see full Lexus GS review
2008 4dr Sedan 292-horsepower 3.5L V6 Hybrid
6-speed shiftable CVT RWD		 For 340 hp and a 0-60 of 5.2 seconds, I consider an average of 24 in the city and 33 on the highway to be incredible. If you really feather the gas and stick to 65 on the highway you can get around 36-38 mpg. see full Lexus GS review
2007 4dr Sedan 292-horsepower 3.5L V6 Hybrid
6-speed shiftable CVT RWD		 Low consumption in city and stop and go traffic Significant fuel savings in typical German highway driving - plenty of acceleration to and braking from high speeds. The hybrid drivetrain minimises the cost of this compared to conventional petrol power see full Lexus GS review
 

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