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|2016||2016 4dr Sedan 306-hp 3.5L V6 8-sp shiftable automatic RWD||18.7||
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|With the 306-horsepower 3.5L V6 engine, 8-speed shiftable automatic transmission, and rear-wheel drive, the 2016 Lexus IS has been averaging 18.7 MPG (miles per gallon).
The 2016 Lexus ISs in this analysis were driven mostly in heavy traffic (about 50 percent of the miles driven). The rest of the miles were on the highway at an average speed of 70 miles 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.