- Gas
- Standard SUVs
- MY2003–2026
Lexus GX MPG & Fuel Cost by Year
24 model years · 2003–2026
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Lexus GX fuel economy at a glance
EPA has rated the Lexus GX for 24 model years, 2003 to 2026. Across those years its combined rating runs 15–17 MPG. The latest model year, 2026, has 1 configuration rated 17 MPG combined and costing $4,600 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2003 is the 2026 550 3.4L 6-cyl turbo 4WD, at 17 MPG.
Lexus GX MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2024-2026 (J250) Generation page | ||
| 2026 | 17 | $4,600 |
| 2025 | 17 | $4,600 |
| 2024 | 17 | $4,600 |
| 2010-2023 (J150) Generation page | ||
| 2023 | 16 | $4,940 |
| 2022 | 16 | $4,940 |
| 2021 | 16 | $4,940 |
| 2020 | 16 | $4,940 |
| 2019 | 16 | $4,990 |
| 2018 | 16 | $4,990 |
| 2017 | 16 | $4,990 |
| 2016 | 17 | $4,740 |
| 2015 | 17 | $4,740 |
| 2014 | 17 | $4,740 |
| 2013 | 17 | $4,710 |
| 2012 | 17 | $4,710 |
| 2011 | 17 | $4,710 |
| 2010 | 17 | $4,730 |
| 2003-2009 (J120) Generation page | ||
| 2009 | 15 | $5,360 |
| 2008 | 15 | $5,360 |
| 2007 | 15 | $5,360 |
| 2006 | 15 | $5,360 |
| 2005 | 15 | $4,360 |
| 2004 | 15 | $4,360 |
| 2003 | 15 | $4,360 |
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 GX generations
3 generations between 2003 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 GX's gas mileage by year?
EPA combined ratings for the Lexus GX run 15–17 MPG across model years 2003 to 2026. The latest year, 2026, is rated 17 MPG.
Which Lexus GX model year has the best gas mileage?
The 2026 Lexus GX 550 3.4L 6-cyl turbo 4WD has the highest combined rating since 2003, at 17 MPG.
How much does a Lexus GX cost to fuel per year?
For MY2026, EPA-rated configurations cost $4,600 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $4,600.
Has the Lexus GX's fuel economy improved over time?
Yes. The most efficient configuration moved from 15 MPG in 2003 to 17 MPG in 2026, 2 MPG more.
Which Lexus GX model years have the same ratings?
EPA lists identical ratings as the previous year for 2004, 2007, 2008, 2009, 2012, 2018, 2019, 2021, 2023, 2026. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.