How big is the gas tank on a Lexus LX?

The gas tank on a Lexus LX is typically around 26.4 gallons (about 100 liters) in most current models, though some regional variants can vary between roughly 23.8 and 26.4 gallons depending on market and trim.

Understanding the tank size helps explain the LX’s driving range, refueling frequency, and how the vehicle balances luxury space with long-haul capability. The LX lineup has evolved from the LX 570 to newer generations, and tank capacity can differ by year, engine, and market. Here’s what you need to know about the size of the LX’s fuel reservoir and how it translates to real-world driving.

Fuel tank capacity by generation

To compare how the LX has changed over time, here is a concise look at typical tank sizes across major generations. This helps potential buyers and current owners gauge range and refueling needs.

• Lexus LX 570 (roughly 2008–2021/2022 in some markets): about 26.4 gallons (100 liters).


• Lexus LX 600 (2022–present): commonly cited as 23.8–26.4 gallons (90–100 liters), depending on market and trim.

Note: Exact capacity can vary by market (North America, Europe, Middle East, etc.) and by equipment such as tire size or spare configuration. Always check the official spec sheet for your exact model year and market.

Estimating driving range

Tank size informs your expected driving range, but the actual range depends on engine, drivetrain, and driving conditions. The LX offers a mix of efficiency and power, so ranges can vary widely between highway cruising and city use. For rough planning, multiply the tank capacity by the vehicle’s miles-per-gallon (mpg) in your typical conditions.

• With a 26.4-gallon tank and a mixed-use mpg around 15–19, the approximate range would be roughly 396–501 miles (640–807 km).


• On highways where mpg tends to be higher, the range can push toward the upper end of that spectrum; in city driving, expect the lower end.

Actual range will depend on the exact model year, engine choice, tires, and driving style. EPA estimates and real-world observations can differ.

Maintenance and practical considerations

Fuel tank size matters not only for planning long trips, but also for routine maintenance and fuel-system reliability. The LX’s fuel system is designed for comfort and longevity, but drivers should plan refueling before the gauge runs too low to avoid potential overheating of the fuel pump and to ensure optimal performance in cold or extreme conditions.

Conclusion and practical takeaway

Across its recent generations, the Lexus LX has typically carried a substantial fuel reservoir, with a commonly cited capacity around 26.4 gallons (100 liters). If you’re shopping for a specific year or market, verify the exact specification for that model, as regional differences and new generations can adjust the figure by a few gallons. The tank size supports the LX’s role as a luxury, full-size SUV designed for long trips and towing while still requiring refueling every few hundred miles under typical use.

Summary

In practical terms, the Lexus LX commonly features a 26.4-gallon (100-liter) gas tank, though some markets offer a range from about 23.8 to 26.4 gallons depending on year and trim. Always consult the official spec sheet for your exact vehicle to know the precise capacity and plan your range and refueling accordingly.

How big is the gas tank on a 2025 Lexus LX 600?

21.1gal
Fuel tank capacity - 21.1gal.

What years to avoid Lexus LX 470?

While the Lexus LX470 is generally reliable, the pre-2003 models are the ones to approach with caution due to their less durable four-speed automatic transmission and potential for drivetrain backlash. Owners of all LX470s should also be aware of the potential for issues with older components like window and door lock actuators and possible EVAP system problems, and be prepared for potentially expensive repairs on any used vehicle, notes SlashGear. 
This video explains some of the potential problems to check for when buying a used Lexus LX470: 53sBefore BuyingYouTube · Dec 7, 2022
Years to be cautious about

• Pre-2003 models: These models are known to have a less robust four-speed automatic transmission, which can develop backlash (a clunking noise when shifting).
• Drivetrain issues: While the 2003-2007 models have a stronger five-speed transmission, they can still experience drivetrain backlash, especially with demanding use or high mileage. This is often due to worn-out components in the front gearbox, transfer case, and other parts. 

Other potential issues to consider

• Electrical components: As the vehicles age, components like window motors, seat motors, and door lock actuators are more prone to failure due to their age and wear and tear, says a YouTube video. 
• EVAP system: The Check Engine light can be triggered by faults in the EVAP system or a failed oxygen sensor, according to RepairPal. 
• Starting issues: Some models, particularly the earlier ones, may experience stalling and idle instability or a crank-no-start condition due to immobilizer or fuel pump relay issues. 

Why is the Lexus LX 600 so expensive?

The Lexus LX 600 is expensive due to its premium brand status, which includes high-quality materials, luxurious features, and advanced technology, combined with its body-on-frame construction, which is more robust and expensive to engineer than a unibody platform. Additionally, its pricing is supported by factors like a powerful twin-turbo V6 engine, a capable all-wheel-drive system, and the brand's reputation for durability and long-term reliability. 
Brand prestige and premium features

• Luxury and craftsmanship: Lexus is a luxury brand, and the LX 600 reflects this with high-end materials like leather and wood inlays, along with premium finishes. 
• Advanced amenities: It comes equipped with luxury features such as heated and ventilated seats, a Mark Levinson sound system, a cool box, and ambient lighting that are costly to include. 
• Advanced safety and technology: The SUV includes an extensive suite of advanced driver-assistance technologies and safety systems. 

Robust construction and engineering 

• Body-on-frame platform: The LX 600 is a body-on-frame SUV, a construction method typically used for trucks that provides a strong and durable foundation, but is more expensive to build than a unibody crossover. 
• Durable powertrain: The twin-turbo V6 engine is a robust and powerful engine, contributing to the overall cost of the vehicle. 
• High-quality suspension: It utilizes advanced suspension systems, such as hydraulic active height control, to achieve a comfortable ride despite its sturdy construction. 

Performance and capability

• Powerful engine: The twin-turbocharged V6 engine provides strong performance, contributing to the higher price tag. 
• Capable 4WD: The LX 600 comes standard with a full-time four-wheel-drive system and can be optioned with features like front and rear locking differentials, which add to its cost and capability. 
• Reputation for longevity: Lexus builds its vehicles with a reputation for high quality and reliability, which supports the LX 600's premium price point and long-term value. 

What is the range of the Lexus LX full tank?

358 miles
At 17.97 gallons the LX hybrid's fuel tank holds 3.17 gallons less fuel than the non-hybrid model. That translates to the EPA rating the LX 700h as having a driving range of 358 miles while the non-hybrid LX 600 has a rating of 401 miles.