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Lexus IS Fuel Economy (g/100m)

g/100m Number of Vehicles
3 gallons per 100 meters 2 vehicles
4 gallons per 100 meters 10 vehicles
5 gallons per 100 meters 12 vehicles
6 gallons per 100 meters 3 vehicles
7 gallons per 100 meters 0 vehicles
8 gallons per 100 meters 0 vehicles
9 gallons per 100 meters 0 vehicles
10 gallons per 100 meters 0 vehicles
11 gallons per 100 meters 0 vehicles
12 gallons per 100 meters 0 vehicles
13 gallons per 100 meters 0 vehicles
14 gallons per 100 meters 0 vehicles
15 gallons per 100 meters 0 vehicles
16 gallons per 100 meters 0 vehicles
17 gallons per 100 meters 0 vehicles
18 gallons per 100 meters 0 vehicles
19 gallons per 100 meters 0 vehicles
20 gallons per 100 meters 0 vehicles
21 gallons per 100 meters 0 vehicles
22 gallons per 100 meters 0 vehicles
23 gallons per 100 meters 0 vehicles
24 gallons per 100 meters 0 vehicles
25 gallons per 100 meters 0 vehicles
26 gallons per 100 meters 1 vehicles
27 gallons per 100 meters 0 vehicles
28 gallons per 100 meters 1 vehicles
Model Year Body/Powertrain g/100m  
2008 2008 4dr Sedan 306-hp 3.5L V6 6-sp shiftable automatic RWD 4.02
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With the 232 kilowatts 3.5L V6 engine, 6-speed shiftable automatic transmission, and rear-wheel drive, the 2008 Lexus IS has been averaging 4.02 L/100km (liters per 100 kilometers).

The 2008 Lexus ISs in this analysis were driven mostly on the highway at an average speed of 66 kilometers per hour (about 40 percent of the kilometers driven). The rest of the kilometers were in the city (19.8 percent), in heavy traffic (15.8 percent), and in the suburbs (0 percent).

In addition, the average 2008 Lexus IS in this analysis was driven on hilly terrain with a medium foot and the AC not used at all.
2008 2008 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic AWD 4.55
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2008 2008 4dr Sedan 204-hp 2.5L V6 6-sp manual RWD 27.05
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2008 2008 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 3.23
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2008 2008 4dr Sedan 416-hp 5.0L V8 8-sp shiftable automatic RWD 5.66
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What Our Members Are Saying about the Real Gas Mileage of the 2008 Lexus IS

2008 Lexus IS Real Gas Mileage: Pros
YearBody/PowertrainComment
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
2008 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
 

2008 Lexus IS Gas Mileage (g/100m)

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 g/100m based on how and where you drive a car.