What is the fuel consumption of Lexus GX 460?

In most model years, the GX 460 achieves about 15–16 mpg in city driving and around 20–21 mpg on the highway, with a combined figure near 18 mpg. These figures reflect EPA estimates and can vary by year, drivetrain, and driving conditions.

The Lexus GX 460 uses a 4.6-liter V8 engine paired with a 6-speed automatic transmission and, in most trims, standard on-demand all-wheel drive. This combination delivers strong off-road capability but tends to keep fuel economy in the mid-teens to low-20s on the highway. This article outlines current typical EPA estimates and what influences real-world performance.

Typical fuel economy ranges by model year

The following ranges summarize EPA estimates reported for common GX 460 configurations. Real-world numbers can vary based on several factors.

• 2009–2013 Lexus GX 460: approximately 15 mpg city / 20 mpg highway; combined around 17–18 mpg.


• 2014–2019 Lexus GX 460: approximately 16 mpg city / 20 mpg highway; combined around 18 mpg.


• 2020–2024 Lexus GX 460: approximately 16 mpg city / 21 mpg highway; combined around 18–19 mpg.

Note: Real-world fuel economy depends on driving style, terrain, payload, maintenance, and tire type. Highway driving with light loads usually yields the best efficiency, while city driving, heavy cargo, or off-road use can lower numbers.

Tips to maximize fuel efficiency

To squeeze the most miles per gallon, keep tires inflated to the recommended pressure, perform regular maintenance (oil changes, air filters, and spark plugs as needed), and adopt smoother driving habits. Avoid excessive idling and heavy accelerations, especially when the vehicle is cold.

Summary

The Lexus GX 460 typically sits in the mid-teens to low-20s for fuel economy, with city MPG often in the 15–16 range and highway MPG around 20–21, yielding a combined roughly in the 18 mpg neighborhood. For exact numbers, consult the EPA Fuel Economy site or the specific year’s window sticker, as values vary by model year and configuration.

Is the Lexus GX 460 fuel efficient?

A GX 460 model provides a 15/19/16 MPG city/hwy/combined4.

How many miles per gallon does a 2025 GX 460 get?

MPG Estimates
The 2025 Lexus GX gets about 15 mpg in the city and 21 mpg on the highway. Those estimates are subpar for a luxury midsize SUV.

What years to avoid GX 460?

The main Lexus GX 460 years to avoid are 2010–2013 due to potential issues like engine oil leaks (valley plate leak), as well as the 2010 model specifically, which had a temporary sales suspension after a rollover risk was identified during sharp turns. Later models, especially 2016 and 2017, may be more prone to oil leaks as well, though not as critically as the earlier years. 
Years to be cautious about

• 2010–2013: These early models are more frequently cited for potential problems, such as the valley plate coolant leak, which can be expensive to repair. 
• 2016 and 2017: These years have been noted by some owners as having a higher likelihood of oil leaks. 

Model years generally considered more reliable 

• 2014 and later: These models reportedly have a different, less leak-prone head gasket. 
• 2021 and 2022: These years are specifically highlighted as being very reliable. 

Other potential issues to consider with any model year

• Secondary Air Injection System: Problems with this system can be costly to repair. 
• Suspension: Models with the optional AHC (Adjustable Height Control) or KDSS (Kinetic Dynamic Suspension System) can experience issues, though Lexus has issued a TSB (Technical Service Bulletin) to address a leaning issue in some earlier KDSS vehicles. 
• Rust: In areas where roads are salted, rust can be a concern, especially on models driven in the North. 
• Maintenance: Regular and consistent fluid changes, especially transmission fluid, are crucial to the longevity of the vehicle. 

Do Lexus GX 460 require premium gas?

Yes, later model Lexus GX 460s (201720172017 and newer) require premium fuel, while earlier models (201620162016 and older) can use regular unleaded, though premium is recommended for best performance. The engine in the GX 460 is designed to run most efficiently on 91-octane premium fuel. 
GX 460 fuel requirements by model year

• 201720172017 and newer: Require a minimum of 91-octane premium fuel. 
• 201620162016 and older: Require a minimum of 87-octane regular unleaded gas. However, premium fuel is still recommended for optimal performance and fuel efficiency. 

What happens if you use regular gas in a newer model?

• Using regular gas in a newer model may cause a slight decrease in performance and fuel efficiency. 
• Prolonged use of lower-octane fuel could potentially lead to engine knocking, and over time may cause carbon buildup.