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Jaguar XJ vs. Mercedes-Benz SL MPG

Chart is based on 15 fuel economy reports for the Jaguar XJ and 8 fuel economy reports for the Mercedes-Benz SL.

Jaguar XJ MPG

Jaguar XJ Jaguar XJ 2006 19.6 MPG Highway Percentage 62 percent Jaguar XJ Jaguar XJ 2005 22.5 MPG Highway Percentage 58 percent Jaguar XJ Jaguar XJ 2004 20.8 MPG Highway Percentage 54 percent Jaguar XJ Jaguar XJ 2004 23.1 MPG Highway Percentage 47 percent Jaguar XJ Jaguar XJ 2001 20.3 MPG Highway Percentage 43 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
2006 4dr Sedan, ext. supercharged 400hp 4.2L V8
6-speed automatic RWD		 flat med light 5 20 13 62 67 19.6  
2005 4dr Sedan supercharged 390hp 4.2L V8
6-speed automatic RWD		 flat light none 3 29 10 58 83 22.5  
2004 4dr Sedan supercharged 390hp 4.2L V8
6-speed automatic RWD		 flat med light 8 8 30 54 70 20.8  
2004 4dr Sedan 294-horsepower 4.2L V8
6-speed automatic RWD		 flat light light 4 27 21 47 68 23.1  
2001 4dr Sedan, ext. 290-horsepower 4.0L V8
5-speed automatic RWD		 hills lead none 5 52 0 43 65 20.3  

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This page shows only averages. See all the Jaguar XJ 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.

Jaguar XJ 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 Jaguar XJ 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 Jaguar models and Mercedes-Benz models.

What Our Members Are Saying about the Real Gas Mileage of the Jaguar XJ

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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