- Newest year: 2026
- Gas
- Standard SUVs
- Same as 2025
2024-2026 Lexus GX MPG & Fuel Cost
3 model years · 17 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 1 of 10 standard SUV configurations, MY2026. Ranked against all rated configurations, not sales-weighted.
2024-2026 Lexus GX at a glance
The 2024-2026 Lexus GX covers 3 model years in the EPA database (3 configurations in all), rated 17 MPG combined. The newest model year, 2026, costs about $4,600 a year to fuel for its most efficient version, the 550 3.4L 6-cyl turbo 4WD (17 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2025; 2026 repeat the values of the year before.
2024-2026 Lexus GX by model year
What the 2026 550 3.4L 6-cyl turbo 4WD costs to drive
Per month
$383
$4,600 a year ÷ 12
Per 25 miles
$7.67
Per 100 miles
$30.67
Five years
$23,000
5 × the yearly cost, prices held at today's level
vs the standard SUV median
$1,490more a year
Class median $3,110 a year, MY2026
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2026 Lexus GX MPG
EPA lists the same ratings for the 2026 Lexus GX as for the 2025 model, so the configurations and costs are the ones in the 2025 section above.See 2025
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| 550 (Most efficient) | 3.4L 6-cyl turbo | 4WD | 15 | 21 | 17 | $4,600 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2025 Lexus GX MPG
17 MPG · $4,600/yr
Versus 2024: The most efficient configuration stays at 17 MPG. Its annual cost stays at $4,600.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| 550 (Most efficient) | 3.4L 6-cyl turbo | 4WD | 15 | 21 | 17 | $4,600 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2024 Lexus GX MPG
17 MPG · $4,600/yr
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| 550 (Most efficient) | 3.4L 6-cyl turbo | 4WD | 15 | 21 | 17 | $4,600 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the 550 3.4L 6-cyl turbo 4WD: $5,480 in California and $3,990 in Texas, a $1,490 difference.
- California $5,480
- Washington $5,160
- New York $4,540
- Florida $4,200
- Texas $3,990
Similar cars
Closest combined MPG among MY2026 standard SUV models.
Generations
- 2003-2009 (J120)
- 2010-2023 (J150)
- 2024-2026 (J250)
Frequently asked questions
What gas mileage does the 2024-2026 Lexus GX get?
EPA rates the 2024-2026 Lexus GX at 17 MPG combined across 3 configurations and 3 model years. The most efficient version, the 2026 550 3.4L 6-cyl turbo 4WD, is rated 17 MPG (15 city, 21 highway).
Which years had the best MPG in the 2024-2026 Lexus GX?
Every model year of the 2024-2026 Lexus GX tops out at 17 MPG combined, so no year is better than another.
Did EPA ratings change during the 2024-2026 Lexus GX?
Yes. Ratings changed in 2025. In 2026 the values repeat the year before.
How does the 2024-2026 Lexus GX compare with the previous generation?
The previous generation (2010-2023 Lexus GX) is rated 16–17 MPG combined and costs $4,710–$4,990 a year to fuel; the 2024-2026 model is rated 17 MPG and costs $4,600 a year.
How much does it cost to fuel a 2026 Lexus GX per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the 550 3.4L 6-cyl turbo 4WD costs about $4,600 a year. Across all 1 configuration the cost runs $4,600 a year.
How much does it cost to drive a 2026 Lexus GX 100 miles?
About $30.67 per 100 miles for the 550 3.4L 6-cyl turbo 4WD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.
Is the 2026 Lexus GX more efficient in the city or on the highway?
The 550 3.4L 6-cyl turbo 4WD is rated 15 city and 21 highway MPG, so it is more efficient on the highway, by 6 MPG.
How does the 2026 Lexus GX compare with other standard SUV configurations?
The 550 3.4L 6-cyl turbo 4WD costs about $4,600 a year to fuel, $1,490 more than the class median of $3,110, and less than 1 of 10 standard SUV configurations. The comparison covers all 299 rated standard SUV configurations for MY2026, not weighted by sales.
Is the 2026 Lexus GX different from the 2025 model?
No. EPA lists the same ratings for 2025 and 2026: 1 configuration rated 17 MPG combined. See the 2025 Lexus GX for that year.