How many miles per gallon does a 2024 Lexus GX 550 get?
The 2024 Lexus GX 550 delivers about 21 miles per gallon combined in the standard AWD configuration, with EPA estimates of 19 mpg city and 23 mpg highway. This article breaks down the official numbers, real-world mileage, and factors that influence efficiency for this luxury, off-road capable SUV.
EPA fuel economy in official figures
Official figures from the EPA reflect the vehicle as tested in typical configurations. For the 2024 GX 550, the AWD model carries the following estimates.
- City: 19 mpg
- Highway: 23 mpg
- Combined: 21 mpg
These figures pertain to the AWD GX 550; dedicated 2WD ratings are not commonly published for this model in the U.S. market. Real-world performance can vary from the EPA estimates due to driving conditions and equipment.
Real-world mileage and influencing factors
In everyday driving, actual mpg can differ from these EPA numbers. Factors such as terrain, cargo weight, tire choice, and climate-control usage can push efficiency up or down.
- Terrain and driving style: Highway cruising tends to yield higher mpg than city stop-and-go or off-road use.
- Payload and roof loads: Extra weight reduces efficiency, especially on inclines or when towing.
- Tires and wheels: Larger or more aggressive tires can lower mpg modestly.
- Maintenance and drivetrain health: Proper maintenance helps maintain efficiency closer to rated figures.
In practice, many drivers report real-world mileage in the low-to-mid 20s mpg range, with variations based on how the vehicle is used and configured.
How it stacks up against peers
Compared with other large luxury SUVs with similar powertrains, the GX 550’s fuel economy sits in the same general vicinity. Its weight, off-road gearing, and a strong V6 contribute to efficiency that is competitive for its class, though some lighter or more highway-focused rivals may post higher highway mpg.
Summary
The 2024 Lexus GX 550 isn’t a fuel-sipper, but its economy aligns with other full-size luxury SUVs with off-road capability. EPA estimates for the AWD configuration are roughly 19 mpg city, 23 mpg highway, and 21 mpg combined, with real-world mileage typically landing in the low- to mid-20s depending on driving conditions and configuration. For precise numbers, verify the specific trim and tire setup on the vehicle you’re considering, and remember that driving style significantly affects mpg.
How many miles per gallon is a Lexus GX 550?
As mentioned before, you can expect around 15 miles per gallon from GX 550 in city driving conditions. On highways, GX 550 can deliver as good as 21-22 MPG. In Short, the combined Lexus GX 550 gas mileage is around 17-18.
Is the GX550 bigger than a 4Runner?
How big is the Lexus GX 550 compared to the Toyota 4Runner? The Lexus GX 550 is undoubtedly the larger vehicle compared to the Toyota 4Runner, boasting a 197-inch length vs. the 194.9-inch length of the Toyota SUV and offering additional width and height across trim levels.
What is the gas mileage on a 2025 Lexus GX 550?
The 2025 Lexus GX 550 has an EPA-estimated fuel economy of 15 mpg in the city and 21 mpg on the highway, resulting in a combined 17 mpg. These figures apply to all trims, including the Premium, Premium+, Luxury, and Luxury+ models.
You can watch this video to see a review of the 2025 Lexus GX 550, including details on its fuel economy: 47sCars of MedicineYouTube · Jul 2, 2025
- City MPG: 15
- Highway MPG: 21
- Combined MPG: 17
- Fuel Type: Premium unleaded is required
Does the GX550 require premium gas?
Yes, the Lexus GX550 requires premium unleaded gasoline with a 91 octane rating or higher. Using premium fuel is recommended to achieve the vehicle's intended performance, and using lower-octane fuel can lead to decreased performance.
- Fuel requirement: The GX550 is designed to run on premium 91-octane gasoline.
- Performance: Using premium fuel is necessary for the engine to perform as expected.
- Consequences of using regular gas: Using regular gas may cause decreased performance because the engine is designed for higher octane fuel to prevent pre-ignition or "knocking," according to Lexus.
