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How many gallons of gas does a Lexus GS 350 hold?

About 17.4 gallons (approximately 65.8 liters).


The Lexus GS 350 is a mid-size luxury sedan, and its fuel tank is designed to balance driving range with space and weight. For most recent GS 350 models sold in North America, the official fuel tank capacity is 17.4 gallons. The usable fuel you can actually drive on before refueling is slightly less than the full tank, due to reserve volume and fuel-system design. Always check the exact specification for your specific year, market, and trim in the owner’s manual or the vehicle’s information label.


Capacity details and context


The figures below reflect typical published tank capacities for the GS 350 across common markets and recent years. Minor differences can occur due to regional specifications or rounding in official documents.



  • North American GS 350 models: 17.4 gallons (65.8 liters).

  • Other markets: commonly listed as 17.4 gallons (65.8 liters), with minor rounding differences in some publications.

  • Practical range considerations: with typical driving efficiency, a full 17.4-gallon tank can provide roughly 340–450 miles of driving, depending on drivetrain (RWD vs. AWD) and driving conditions.


In all cases, confirm the exact capacity for your specific vehicle year and market in the owner's manual or on the door jamb fuel-filler label, since there can be small variations between model years and trims.


Practical range considerations


Fuel economy for the GS 350 varies by drivetrain and year, but many models tend to achieve roughly 20–25 miles per gallon combined. That translates to an approximate driving range of about 340–435 miles on a full 17.4-gallon tank, depending on how you drive and where you drive.


Summary


The Lexus GS 350 typically holds 17.4 gallons of fuel (about 65.8 liters) across most recent model years and markets. Always verify the exact figure for your car in the owner’s manual or on the vehicle’s fuel-filler label, as there can be small variations by year, market, or trim. When you know your mpg, you can estimate your driving range on a full tank with a simple calculation.

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Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.