- Gas
- Small cars
- MY2001–2026
Lexus IS MPG & Fuel Cost by Year
26 model years · 2001–2026
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Lexus IS fuel economy at a glance
EPA has rated the Lexus IS for 26 model years, 2001 to 2026. Across those years its combined rating runs 18–26 MPG. The latest model year, 2026, has 2 configurations rated 22 MPG combined and costing $3,660–$3,700 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2001 is the 2018 300 2.0L 4-cyl turbo RWD, at 26 MPG.
Lexus IS MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2014-2026 (XE30) Generation page | ||
| 2026 | 22 | $3,660–$3,700 |
| 2025 | 20–25 | $3,240–$4,080 |
| 2024 | 20–25 | $3,240–$4,080 |
| 2023 | 20–25 | $3,230–$4,080 |
| 2022 | 20–25 | $3,250–$4,080 |
| 2021 | 22–25 | $3,250–$3,690 |
| 2020 | 21–24 | $3,310–$3,830 |
| 2019 | 21–24 | $3,280–$3,740 |
| 2018 | 22–26 | $3,120–$3,720 |
| 2017 | 21–26 | $3,120–$3,770 |
| 2016 | 21–26 | $3,120–$3,780 |
| 2015 | 21–24 | $3,310–$3,760 |
| 2014 | 21–24 | $3,310–$3,760 |
| 2006-2013 (XE20) Generation page | ||
| 2013 | 22–24 | $3,360–$3,730 |
| 2012 | 21–24 | $3,300–$3,820 |
| 2011 | 20–24 | $3,310–$3,930 |
| 2010 | 20–24 | $3,350–$4,020 |
| 2009 | 20–24 | $3,350–$4,020 |
| 2008 | 20–24 | $3,350–$4,020 |
| 2007 | 21–24 | $3,350–$3,830 |
| 2006 | 21–24 | $3,350–$3,830 |
| 2001-2005 (XE10) Generation page | ||
| 2005 | 18 | $4,460 |
| 2004 | 18 | $4,460 |
| 2003 | 18 | $4,460 |
| 2002 | 18–19 | $4,230–$4,460 |
| 2001 | 18 | $4,460 |
Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.
Lexus IS generations
3 generations between 2001 and 2026. Open one for the table of every model year and configuration.
2026 powertrain options
More Lexus models
Frequently asked questions
What is the Lexus IS's gas mileage by year?
EPA combined ratings for the Lexus IS run 18–26 MPG across model years 2001 to 2026. The latest year, 2026, is rated 22 MPG.
Which Lexus IS model year has the best gas mileage?
The 2018 Lexus IS 300 2.0L 4-cyl turbo RWD has the highest combined rating since 2001, at 26 MPG.
How much does a Lexus IS cost to fuel per year?
For MY2026, EPA-rated configurations cost $3,660–$3,700 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,660.
Has the Lexus IS's fuel economy improved over time?
Yes. The most efficient configuration moved from 18 MPG in 2001 to 22 MPG in 2026, 4 MPG more.
Which Lexus IS model years have the same ratings?
EPA lists identical ratings as the previous year for 2004, 2009. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.