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Audi A5 / S5 / RS5 vs. Lexus IS Fuel Economy (km/L)

Chart is based on 141 fuel economy reports for the Audi A5 / S5 / RS5 and 143 fuel economy reports for the Lexus IS.

Audi A5 / S5 / RS5 km/L

Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2013 64.5 MPG Highway Percentage 66 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2012 57.5 MPG Highway Percentage 29 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 36.8 MPG Highway Percentage 30 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 45.6 MPG Highway Percentage 70 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2011 60.0 MPG Highway Percentage 50 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 58.1 MPG Highway Percentage 33 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 9.1 MPG Highway Percentage 70 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2010 29.1 MPG Highway Percentage 55 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2009 47.7 MPG Highway Percentage 62 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2009 62.4 MPG Highway Percentage 23 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 20.0 MPG Highway Percentage 100 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 11.3 MPG Highway Percentage 43 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 36.6 MPG Highway Percentage 24 percent Audi A5 / S5 / RS5 Audi A5 / S5 / RS5 2008 57.6 MPG Highway Percentage 32 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
2013 2dr Coupe turbocharged 211hp 2.0L I4
8-speed shiftable automatic AWD		 flat med light 0 0 34 66 75 64.5  
2012 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 flat med light 5 16 50 29 66 57.5  
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med light 10 30 30 30 75 36.8  
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 hills light light 3 8 20 70 73 45.6  
2011 2dr Convertible turbocharged 211hp 2.0L I4
8-speed shiftable CVT FWD		 flat light none 20 10 20 50 70 60.0  
2010 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 flat lead none 9 11 47 33 72 58.1  
2010 2dr Coupe 354-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med hvy 10 10 10 70 120 9.1  
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2010 2dr Convertible supercharged 333hp 3.0L V6
7-speed automated manual AWD		 hills med none 0 5 40 55 88 29.1  
2009 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 flat med none 0 17 22 62 67 47.7  
2009 2dr Coupe 265-horsepower 3.2L V6
6-speed manual AWD		 flat med light 10 28 40 23 68 62.4  
2008 2dr Coupe turbocharged 240hp 3.0L V6 Diesel
6-speed manual AWD		 flat light light 0 0 0 100 100 20.0  
2008 2dr Coupe turbocharged 170hp 1.8L I4
6-speed manual FWD		 flat med light 13 18 28 43 160 11.3  
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 flat lead none 1 14 60 24 73 36.6  
2008 2dr Coupe 265-horsepower 3.2L V6
6-speed shiftable automatic AWD		 flat med hvy 20 24 24 32 80 57.6  

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This page shows only averages. See all the Audi A5 / S5 / RS5 fuel economy data.

Lexus IS km/L

Lexus IS Lexus IS 2016 44.0 MPG Highway Percentage 20 percent Lexus IS Lexus IS 2010 47.8 MPG Highway Percentage 2 percent Lexus IS Lexus IS 2010 51.3 MPG Highway Percentage 15 percent Lexus IS Lexus IS 2010 29.3 MPG Highway Percentage 44 percent Lexus IS Lexus IS 2009 42.0 MPG Highway Percentage 57 percent Lexus IS Lexus IS 2009 63.5 MPG Highway Percentage 70 percent Lexus IS Lexus IS 2008 41.5 MPG Highway Percentage 28 percent Lexus IS Lexus IS 2008 58.5 MPG Highway Percentage 40 percent Lexus IS Lexus IS 2008 72.9 MPG Highway Percentage 55 percent Lexus IS Lexus IS 2008 52.7 MPG Highway Percentage 21 percent Lexus IS Lexus IS 2008 8.7 MPG Highway Percentage 20 percent Lexus IS Lexus IS 2007 57.9 MPG Highway Percentage 50 percent Lexus IS Lexus IS 2007 74.8 MPG Highway Percentage 80 percent Lexus IS Lexus IS 2007 59.6 MPG Highway Percentage 45 percent Lexus IS Lexus IS 2006 51.9 MPG Highway Percentage 30 percent Lexus IS Lexus IS 2006 35.6 MPG Highway Percentage 47 percent Lexus IS Lexus IS 2006 56.5 MPG Highway Percentage 65 percent Lexus IS Lexus IS 2005.5 79.1 MPG Highway Percentage 60 percent Lexus IS Lexus IS 2005 37.3 MPG Highway Percentage 11 percent Lexus IS Lexus IS 2004 44.7 MPG Highway Percentage 50 percent Lexus IS Lexus IS 2004 49.7 MPG Highway Percentage 66 percent Lexus IS Lexus IS 2004 56.5 MPG Highway Percentage 48 percent Lexus IS Lexus IS 2003 37.2 MPG Highway Percentage 41 percent Lexus IS Lexus IS 2003 55.1 MPG Highway Percentage 70 percent Lexus IS Lexus IS 2002 46.6 MPG Highway Percentage 26 percent Lexus IS Lexus IS 2002 46.2 MPG Highway Percentage 35 percent Lexus IS Lexus IS 2002 40.3 MPG Highway Percentage 23 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
2016 4dr Sedan 306-horsepower 3.5L V6
8-speed shiftable automatic RWD		 flat light light 50 10 20 20 70 44.0  
2010 4dr Sedan 416-horsepower 5.0L V8
8-speed shiftable automatic RWD		 flat med light 0 0 98 2 80 47.8  
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat med light 5 70 10 15 60 51.3  
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 hills med none 7 16 33 44 83 29.3  
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat light none 2 9 33 57 90 42.0  
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 hills light light 5 5 20 70 65 63.5  
2008 4dr Sedan 416-horsepower 5.0L V8
8-speed shiftable automatic RWD		 flat med hvy 20 25 27 28 70 41.5  
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2008 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD		 hills med none 16 20 25 40 66 58.5  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat v.lt light 15 15 15 55 70 72.9  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 flat light light 4 18 57 21 61 52.7  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed manual RWD		 flat med light 8 63 10 20 110 8.7  
2007 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD		 flat med light 6 21 23 50 75 57.9  
2007 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat light hvy 5 5 10 80 70 74.8  
2007 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 flat light light 5 23 28 45 63 59.6  
2006 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD		 flat med light 7 50 13 30 71 51.9  
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 flat med light 9 25 20 47 88 35.6  
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 hills light light 5 5 25 65 70 56.5  
2005.5 4dr Sedan 204-horsepower 2.5L V6
6-speed manual RWD		 flat med none 20 20 0 60 80 79.1  
2005 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 41 49 0 11 59 37.3  
2004 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat lead hvy 20 15 15 50 75 44.7  
2004 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 1 27 6 66 77 49.7  
2004 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD		 flat med light 7 29 16 48 71 56.5  
2003 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 9 33 18 41 88 37.2  
2003 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD		 flat med none 0 0 30 70 75 55.1  
2002 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 12 19 43 26 80 46.6  
2002 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 flat med light 10 40 15 35 68 46.2  
2002 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD		 flat med light 15 24 39 23 73 40.3  

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

Audi A5 / S5 / RS5 vs. Lexus IS 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 Audi A5 / S5 / RS5 and Lexus IS'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 Coupes, Convertibles, and Hatchbacks.
See TrueDelta's information for all Audi models and Lexus models.

What Our Members Are Saying about the Real Gas Mileage of the Audi A5 / S5 / RS5

Audi A5 / S5 / RS5 Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 2dr Coupe turbocharged 211hp 2.0L I4
8-speed shiftable automatic AWD		 Mileage seems to have leveled out at about 27 mpg with a 60/40 mix of highway and suburban driving. On longer trips, it has been as high as 30 mpg while driving a steady 75 mph. see full Audi A5 / S5 / RS5 review
2010 2dr Coupe turbocharged 211hp 2.0L I4
6-speed manual AWD		 Averaging 9L/100KM, without feeling too conservative. see full Audi A5 / S5 / RS5 review
Audi A5 / S5 / RS5 Real Gas Mileage: Cons
YearBody/PowertrainComment
2011 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 I knew what gas mileage the S5 got long before I stepped onto the dealer lot. Still, I get 24 mpg on a full highway run. see full Audi A5 / S5 / RS5 review
2009 2dr Coupe turbocharged 170hp 2.0L I4 Diesel
6-speed manual AWD		 Fuel economy is fair when going for a long ride, the car is AWD and heavy. I did however expect a somewhat lower fuel consumption when driving short-distance. see full Audi A5 / S5 / RS5 review
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 It is not great, and if you have fun with the car, you will get less than 15MPG see full Audi A5 / S5 / RS5 review
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 drinks too fast when driving is more aggressive see full Audi A5 / S5 / RS5 review
2008 2dr Coupe 354-horsepower 4.2L V8
6-speed manual AWD		 Thirsty V8 coupled with a car that was born to be driven hard equals mid-teen MPG in mostly non-highway driving. see full Audi A5 / S5 / RS5 review
 

TrueDelta Reviews the Real Gas Mileage of the Lexus IS

Lexus IS Real Gas Mileage: Cons
YearComment
The 2014 IS 350 manages 19 mpg in the EPA city test, and 28 in the highway test. While these figures tie those for the Cadillac ATS 3.6, they're short of the 23/33 achieved by the BMW 335i. Also, with both the BMW and the Cadillac you can step down to more efficient turbocharged four-cylinder engines. With the new IS, your only other engine option is a small V6, and its fuel economy is only a couple mpg better than that of the big V6 (21/30). The BMW has a further advantage: you can set the steering and suspension to "Sport" without forcing the transmission to hold a lower gear. In the 2014 IS 350 F Sport, the sport modes are "all or nothing." Select one to firm up the steering and suspension, and the transmission won't shift beyond sixth gear, reducing fuel economy. Lexus should follow Audi's lead and offer an "Individual" mode, where each system (powertrain, steering, suspension, etc.) can be set separately. see full Lexus IS review
 

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

Lexus IS Real Gas Mileage: Pros
YearBody/PowertrainComment
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 Almost as good as Prius, this is the hybrid 250h see full Lexus IS review
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 Our 2010 IS 250 has given us 30 mph highway mileage. I consider it very very good. see full Lexus IS review
2009 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD		 Excellent fuel economy... overall 24 mpg city and highway combined. As high as 32 mpg highway driving in Arizona mountains. see full Lexus IS review
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 Good highway fuel economy, can average 30+ mpg see full Lexus IS review
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 My real world economy has been 33 mpg hwy (not the computer figure, an optimistic 34.5-35)which is better than expected and slightly over 20 in city driving (not heavy traffic), also better than expected see full Lexus IS review
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD		 Good fuel economy for a 1600kg car with AWD. see full Lexus IS review
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 At around 200hp, it isnt the fastest luxury sedan. However, on my roadtrip across the eastern / mid eastern USA I was able to get ~33 ish mpg (computer reported) on flat terrain and premium fuel. City mpg is what I expect,22-25ish. But I think it is great as a long distance comfortable vehicle. see full Lexus IS review
Lexus IS Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD		 Wish it got better fuel economy for such a small car and engine... Sticker is 21/29, I'm averaging 27MPG (computer read); avg on hwy is about 33-34 mpg while city is about 19-23mpg. Engine variety would help, a 4 cyl + turbo or something, but toyota/lexus isn't exactly known for that. see full Lexus IS review
2002 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD		 For a small, relatively modestly powered car, it gets poor economy. Corvettes and most Porsches get better economy. see full Lexus IS review