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Lexus IS Fuel Economy (L/100km)

L/100km Number of Vehicles
7 liters per 100 kilometers 1 vehicles
8 liters per 100 kilometers 5 vehicles
9 liters per 100 kilometers 27 vehicles
10 liters per 100 kilometers 34 vehicles
11 liters per 100 kilometers 28 vehicles
12 liters per 100 kilometers 24 vehicles
13 liters per 100 kilometers 13 vehicles
14 liters per 100 kilometers 3 vehicles
15 liters per 100 kilometers 3 vehicles
16 liters per 100 kilometers 4 vehicles
17 liters per 100 kilometers 1 vehicles
Model Year Body/Powertrain L/100km  
2016 2016 4dr Sedan 306-hp 3.5L V6 8-sp shiftable automatic RWD 12.6
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With the 228 kilowatts 3.5L V6 engine, 8-speed shiftable automatic transmission, and rear-wheel drive, the 2016 Lexus IS has been averaging 12.6 L/100km (liters per 100 kilometers).

The 2016 Lexus ISs in this analysis were driven mostly in heavy traffic (about 50 percent of the kilometers driven). The rest of the kilometers were on the highway at an average speed of 70 kilometers per hour (20 percent), in the city (10 percent), and in the suburbs (0 percent).

In addition, the average 2016 Lexus IS in this analysis was driven on flat terrain with a light foot and the AC on only some of the time.
2010 2010 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic AWD 12.1
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2010 2010 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 10.8
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2010 2010 4dr Sedan 416-hp 5.0L V8 8-sp shiftable automatic RWD 11.97
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2009 2009 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic AWD 8.7
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2009 2009 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 9.3
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2008 2008 4dr Sedan 306-hp 3.5L V6 6-sp shiftable automatic RWD 9.45
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2008 2008 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic AWD 10.71
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2008 2008 4dr Sedan 204-hp 2.5L V6 6-sp manual RWD 11.5
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2008 2008 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 7.6
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2008 2008 4dr Sedan 416-hp 5.0L V8 8-sp shiftable automatic RWD 13.33
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2007 2007 4dr Sedan 306-hp 3.5L V6 6-sp shiftable automatic RWD 9.61
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2007 2007 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic AWD 9.31
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2007 2007 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 7.4
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2006 2006 4dr Sedan 306-hp 3.5L V6 6-sp shiftable automatic RWD 11.05
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2006 2006 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic AWD 9.8
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2006 2006 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 9.48
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2005 2005 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 14.96
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2005.5 2005.5 4dr Sedan 204-hp 2.5L V6 6-sp manual RWD 10.1
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2004 2004 4dr Sedan 204-hp 2.5L V6 6-sp manual RWD 10.1
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2004 2004 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 11.17
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2004 2004 4dr Wagon 204-hp 2.5L V6 6-sp shiftable automatic RWD 12.4
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2003 2003 4dr Sedan 204-hp 2.5L V6 6-sp manual RWD 10
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2003 2003 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 12.06
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2002 2002 4dr Sedan 204-hp 2.5L V6 6-sp manual RWD 10.95
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2002 2002 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 12.03
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2002 2002 4dr Wagon 204-hp 2.5L V6 6-sp shiftable automatic RWD 10.93
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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 AWD
Our 2010 IS 250 has given us 30 mph highway mileage. I consider it very very good. see full Lexus IS review
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
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
Good fuel economy for a 1600kg car with AWD. 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
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
 

Lexus IS Gas Mileage (L/100km)

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 IS's real-world L/100km based on how and where you drive a car.