How many gallons does a Lexus GS 350 hold?
The Lexus GS 350’s fuel tank capacity is 17.4 gallons (about 66 liters).
Across its main U.S. model years, the GS 350 uses a 17.4-gallon tank. This figure affects how far you can travel between refuels and the vehicle’s running costs, and it has remained consistent across generations with only minor regional variations in some markets.
Official capacity by generation
Factory specifications and variations
The entries below reflect standard U.S.-market specifications. In each case, the capacity is 17.4 gallons (66 L) unless a specific edition lists a different value.
- 2006–2011 Lexus GS 350: 17.4 gallons (66 L)
- 2013–2020 Lexus GS 350: 17.4 gallons (66 L)
In practice, capacity has been consistent across these generations. Some markets or special editions may cite slightly different figures, but 17.4 gallons is the widely reported capacity for the GS 350 in common configurations.
Driving-range implications
With a typical combined fuel economy in the low- to mid-20s mpg, a full 17.4-gallon tank affords roughly 380–400 miles of driving range before refueling. Real-world range varies with speed, terrain, load, and maintenance; highway driving often yields higher miles per gallon than city driving.
Summary
The GS 350 standard fuel tank is 17.4 gallons (66 liters). This capacity has been stable across the main U.S. model years, providing a dependable basis for planning trips and budgeting fuel costs.
