2026 Lexus GX Specs: MPG, Gas Mileage, Engine Size & Dimensions
2026 Lexus GX Specs at a Glance
The 2026 Lexus GX gets 17 mpg combined on the 3.4L 4-Wheel Drive configuration, weighs 5,666 lbs, measures 196.9 in long. Every figure below comes from EPA, NHTSA, or manufacturer published data — no estimates.
- Combined MPG
- 17 mpg (15 city / 21 hwy)
- Best configuration: 3.4L · 4-Wheel Drive · Automatic (S10)
- Engine
- 3.4L 6-cyl
- 3.4L · 4-Wheel Drive · Automatic (S10)
- Curb weight
- 5,666 lbs
- Heaviest recorded configuration: GX 550 4DR SUV
- Length
- 196.9 in · 78 in wide · 75.6 in tall
- Wheelbase
- 112.2 in
2026 Lexus GX trims and MPG
| Trim | Engine | Trans | Drive | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Auto (S10), 6 cyl, 3.4 L | 6 · 3.4L | Automatic (S10) | 4-Wheel Drive | 15 | 21 | 17 |
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 →Curb Weight
Curb Weight 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 |
Compare the Lexus GX with rivals
- Lexus GX vs Porsche Cayenne
- Lexus GX vs Mercedes-Benz GLE-Class
- Lexus GX vs Volkswagen Atlas
- Lexus GX vs Toyota 4Runner
- Lexus GX vs Nissan Pathfinder
- Lexus GX vs Toyota Sequoia
- Lexus GX vs Nissan Armada
- Lexus GX vs Volvo XC90
- Lexus GX vs Subaru Ascent
- Lexus GX vs Mercedes-Benz GLS-Class
- Lexus GX vs Lincoln Navigator
- Lexus GX vs Mazda CX-9
- Lexus GX vs Maserati Levante
- Lexus GX vs Mitsubishi Eclipse Cross
- Lexus GX vs Lincoln Aviator
- Lexus GX vs Toyota Land Cruiser
- Lexus GX vs Mazda CX-90
- Lexus GX vs GMC Yukon
- Lexus GX vs Jeep Wrangler
- Lexus GX vs Jeep Grand Cherokee
- Lexus GX vs Chevrolet Tahoe
- Lexus GX vs Chevrolet Suburban
- Lexus GX vs Dodge Durango
- Lexus GX vs Ford Bronco
- Lexus GX vs Ford Expedition
- Lexus GX vs Honda Pilot
- Lexus GX vs Ford Edge
- Lexus GX vs BMW X5
- Lexus GX vs Chevrolet Traverse
- Lexus GX vs Land Rover Defender
- Lexus GX vs Land Rover Discovery
- Lexus GX vs Acura RDX
- Lexus GX vs Infiniti QX80
- Lexus GX vs Infiniti QX60
- Lexus GX vs Buick Enclave
- Lexus GX vs Bentley Bentayga
- Lexus GX vs BMW X7
- Lexus GX vs Cadillac XT6
- Lexus GX vs Buick Envision
- Lexus GX vs Audi Q7
Compare across every brand
All Lexus GX specifications
Lexus GX — Frequently Asked Questions
What is the fuel economy of the 2026 Lexus GX?
The Lexus GX is EPA-rated at up to 17 MPG combined (15 city / 21 highway).
What engine does the 2026 Lexus GX have?
The Lexus GX uses a 3.4L 6-cylinder engine paired with an Automatic transmission.
What years of the Lexus GX are covered here?
This page documents 12 verified Lexus GX configurations across model years 2015–2026.
Which model year of the Lexus GX is the most fuel efficient?
The 2026 Lexus GX holds the highest combined rating at 17 MPG; the 2017 sits lowest at 16 MPG, a difference of 1 MPG (about 6%) across the 12 rated years on file.
How many engine options does the Lexus GX have?
The records list 2 distinct displacements for the Lexus GX — 3.4L, 4.6L — which is why combined MPG varies between trims of the same year.
Is the 2026 Lexus GX front-wheel drive or all-wheel drive?
Every Lexus GX configuration on record here is 4-Wheel Drive; no alternative drivetrain appears in the 2015–2026 data.