How big is the fuel tank on a LS430?
The LS430's fuel tank holds about 23 US gallons (roughly 87 liters). This is the most commonly cited capacity for the Lexus flagship sedan from the early 2000s, with only minor variations by market or optional equipment.
Official capacity and practical range
Most official sources list the LS430 fuel tank at 23.0 US gallons (87 liters). In real‑world driving, the full‑tank range typically falls in the order of roughly 400–500 miles (about 640–800 kilometers), depending on driving conditions and economy.
Variations by year or market
While the nominal capacity is broadly consistent, some markets or model‑year specifications may show tiny rounding differences. In practice, the size remains essentially the same across 2000–2006 LS430 models with the 4.3L V8.
Practical implications for owners
A large tank reduces fuel stops on long trips but is influenced by actual fuel economy and driving style. Regular maintenance helps preserve efficiency and accurate range estimates for the vehicle’s trip computer.
Summary: In short, the LS430 typically features a 23‑gallon (87‑liter) fuel tank, with only minor variations by market. This capacity supports long‑range cruising typical of Lexus luxury sedans from this era.
