How big is the fuel tank on a GX 460?

The GX 460’s fuel tank capacity is 23.0 gallons (87 liters). This standard size influences range, refueling intervals, and overall practicality for daily driving and long trips.

Official capacity and where it applies

Lexus lists the GX 460 with a 23.0-gallon tank (87 L) in its published specifications. This capacity is consistent across most model years and regional markets, with liters shown as 87 L in many catalogs to reflect the same volume.

Common capacities by configuration

• Fuel tank capacity: 23.0 gallons (87 liters) — standard across most GX 460 variants.

Note: Some regional manuals may present the measurement in liters; regardless, the practical capacity remains 87 liters.

Estimated driving range on a full tank

Range depends on driving style and conditions. With the GX 460’s 4.6‑liter V8 and typical EPA estimates, you can expect roughly 17–18 miles per gallon combined, which translates to about 390–420 miles (630–680 km) on a full tank, with highway driving toward the higher end and city driving lower.

• Combined efficiency around 17–18 mpg (approximately 7.3–7.7 km per liter).


• Estimated range: about 390–420 miles (630–680 km) under mixed driving conditions.


• Highway driving can push range toward 450–460 miles (725–740 km) in favorable conditions; city driving typically yields 320–360 miles (515–580 km).

Note that real-world range varies with payload, terrain, tires, and driving habits.

Summary

The GX 460 uses a 23.0 gallon (87 liter) fuel tank, a size that supports several hundred miles per tank depending on driving conditions and load. Across most markets and model years, this capacity remains the standard reference for planning fuel stops and range estimates.

What is the fuel tank capacity of a 2011 GX 460?

23.0 gal
Fuel & MPG
345.0/460.0 mi. 23.0 gal.

How many miles can a Lexus GX 460 go on a full tank?

If I'm commuting to work I might only get 250 miles (or less if I fill my tank earlier) but on a highway roadtrip I can hit 350. 2021 - usually around 280.

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. 

How big is a GX 460 gas tank?

23-gallon
A GX 460 model provides a 15/19/16 MPG city/hwy/combined4. Additionally, you're able to reach 60 MPH5 in eight seconds while driving during low-density traffic. Be sure to fill up the 23-gallon fuel tank with premium-grade gas to get optimal quality from this model.