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Lexus IS Fuel Economy (g/100m)

g/100m Number of Vehicles
5 gallons per 100 meters 1 vehicles
6 gallons per 100 meters 4 vehicles
7 gallons per 100 meters 4 vehicles
Model Year Body/Powertrain g/100m  
2005 2005 4dr Sedan 204-hp 2.5L V6 6-sp shiftable automatic RWD 6.35
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With the turbocharged 180kW 2.0L I4 engine, 8-speed shiftable automatic transmission, and rear-wheel drive, the 2005 Lexus IS has been averaging 6.35 L/100km (liters per 100 kilometers).

The 2005 Lexus ISs in this analysis were driven mostly in the city (about 48.9 percent of the kilometers driven). The rest of the kilometers were in heavy traffic (40.6 percent), on the highway at an average speed of 59 kilometers per hour (10.6 percent), and in the suburbs (0 percent).

In addition, the average 2005 Lexus IS in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.

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What Our Members Are Saying about the Real Gas Mileage of the 2005 Lexus IS

2005 Lexus IS Real Gas Mileage: Pros
YearBody/PowertrainComment
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
 

2005 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.