Lexus GX Specifications & MPG Data
2015–2026 model years12 variantsUp to 17 MPG combined
Detailed Specifications
MPG & Fuel Economy
MPG for every year and trim
View details →Engine Specifications
Engine Specs for every year and trim
View details →Annual Fuel Cost
Fuel Cost for every year and trim
View details →Transmission Specifications
Transmission for every year and trim
View details →Drivetrain & Drive Type
Drivetrain for every year and trim
View details →Vehicle Class & EPA Size Category
Vehicle Class for every year and trim
View details →Maintenance Schedule & Service Intervals
Maintenance for every year and trim
View details →Dimensions & Size
Dimensions for every year and trim
View details →Lexus GX Generations
Grouped by year ranges where the engine lineup, drivetrain options, and EPA class stay consistent — a derived approximation of the factory generations, not a manufacturer-published list.
| Years | Variants | Engines | Drive | Class | Best MPG |
|---|---|---|---|---|---|
| 2024–2026 | 3 | 3.4L | 4-Wheel Drive | Standard Sport Utility Vehicle 4WD | 17 |
| 2015–2023 | 9 | 4.6L | 4-Wheel Drive | Standard Sport Utility Vehicle 4WD | 17 |
Lexus GX — All Years Overview
| Year | Trim | Engine | Trans | Drive | City | Hwy | Combined | Fuel |
|---|---|---|---|---|---|---|---|---|
| 2026 | Auto (S10), 6 cyl, 3.4 L | 6 · 3.4L | Automatic (S10) | 4-Wheel Drive | 15 | 21 | 17 | Premium Gasoline |
| 2025 | Auto (S10), 6 cyl, 3.4 L | 6 · 3.4L | Automatic (S10) | 4-Wheel Drive | 15 | 21 | 17 | Premium Gasoline |
| 2024 | Auto (S10), 6 cyl, 3.4 L | 6 · 3.4L | Automatic (S10) | 4-Wheel Drive | 15 | 21 | 17 | Premium Gasoline |
| 2023 | Auto (S6), 8 cyl, 4.6 L | 8 · 4.6L | Automatic (S6) | 4-Wheel Drive | 15 | 19 | 16 | Premium Gasoline |
| 2022 | Auto (S6), 8 cyl, 4.6 L | 8 · 4.6L | Automatic (S6) | 4-Wheel Drive | 15 | 19 | 16 | Premium Gasoline |
| 2021 | Auto (S6), 8 cyl, 4.6 L | 8 · 4.6L | Automatic (S6) | 4-Wheel Drive | 15 | 19 | 16 | Premium Gasoline |
| 2020 | Auto (S6), 8 cyl, 4.6 L | 8 · 4.6L | Automatic (S6) | 4-Wheel Drive | 15 | 19 | 16 | Premium Gasoline |
| 2019 | Auto (S6), 8 cyl, 4.6 L | 8 · 4.6L | Automatic (S6) | 4-Wheel Drive | 15 | 18 | 16 | Premium Gasoline |
| 2018 | Auto (S6), 8 cyl, 4.6 L | 8 · 4.6L | Automatic (S6) | 4-Wheel Drive | 15 | 18 | 16 | Premium Gasoline |
| 2017 | Auto (S6), 8 cyl, 4.6 L | 8 · 4.6L | Automatic (S6) | 4-Wheel Drive | 15 | 18 | 16 | Premium Gasoline |
| 2016 | Auto (S6), 8 cyl, 4.6 L | 8 · 4.6L | Automatic (S6) | 4-Wheel Drive | 15 | 20 | 17 | Premium Gasoline |
| 2015 | Auto (S6), 8 cyl, 4.6 L | 8 · 4.6L | Automatic (S6) | 4-Wheel Drive | 15 | 20 | 17 | Premium Gasoline |