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What is the gas mileage on a 2019 Lexus GX 460?

The 2019 Lexus GX 460 has an EPA-estimated fuel economy of 16 miles per gallon (mpg) in the city and 19 mpg on the highway, for a combined rating of 17 mpg. This luxury SUV is known for its off-road capabilities and spacious interior, but its gas mileage is on the lower end compared to other midsize SUVs.


Detailed Fuel Economy Breakdown


The 2019 Lexus GX 460 is powered by a 4.6-liter V8 engine that produces 301 horsepower. It comes standard with a six-speed automatic transmission and four-wheel drive.



  • City Fuel Economy: 16 mpg

  • Highway Fuel Economy: 19 mpg

  • Combined Fuel Economy: 17 mpg


These fuel economy ratings are lower than many of the GX 460's competitors, such as the 2019 Acura MDX (20 mpg city/27 mpg highway) and the 2019 Infiniti QX60 (20 mpg city/27 mpg highway). The GX 460's large V8 engine and four-wheel drive system contribute to its relatively poor gas mileage compared to more fuel-efficient midsize SUVs.


Factors Affecting Fuel Economy


Several factors can impact the real-world fuel economy of the 2019 Lexus GX 460, including driving conditions, driving style, and vehicle maintenance. Aggressive acceleration, towing heavy loads, and driving at high speeds can all reduce the GX 460's fuel efficiency.



  • Driving Conditions: Hilly terrain, stop-and-go traffic, and extreme temperatures can lower fuel economy.

  • Driving Style: Aggressive acceleration, high speeds, and frequent braking can decrease gas mileage.

  • Vehicle Maintenance: Properly inflated tires, clean air filters, and regular tune-ups can help maximize fuel efficiency.


Owners of the 2019 Lexus GX 460 may find that their real-world fuel economy differs from the EPA estimates, depending on their driving habits and conditions.

Can I use 87 octane in Lexus GX?


A luxury vehicle like Lexus may need premium fuel, but the answer to these questions is actually model-specific. Some vehicles, like the Lexus UX 250h, can utilize regular 87-octane fuel, whereas other models, like the 2022 Lexus GX, require premium 91-octane fuel, so the Lexus gas type depends on the model.



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


I was getting 21.2 mpg on the highway, so that would be a total range of 375 miles not counting the “reserve” capacity.



How reliable is the Lexus GX 460 engine?


Lexus GX460 Reliability Rating Breakdown. The Lexus GX460 Reliability Rating is 3.5 out of 5.0, which ranks it 5th out of 14 for luxury midsize SUVs. The average annual repair cost is $770 which means it has average ownership costs.



What is the real MPG of the GX 460?


Based on data from 17 vehicles, 638 fuel-ups and 155,543 miles of driving, the 2021 Lexus GX460 gets a combined Avg MPG of 15.63 with a 0.27 MPG margin of error.



Is Lexus GX 460 expensive to maintain?


A Lexus GX 460 will cost about $7,856 for maintenance and repairs during its first 10 years of service. This beats the industry average for luxury SUV models by $6,296.



Does a Lexus 460 need premium gas?


Most Lexus models require you use at least 91 octane (premium) gasoline, while there are a few that can use 87 octane regular unleaded.



Do Lexus GX 460 hold their value?


Does a Lexus GX 460 keep its value? The Lexus GX 460 will hold 54% of it's value after 5 years. This ranks 12th among luxury vehicles in our last study. Use our Lexus GX 460 Depreciation Calculator to learn more about its residual value.



How many miles per gallon does a 2019 GX 460 get?


Fuel Economy

City15 mpg
Highway18 mpg
Combined16 mpg



Is Lexus expensive to maintain?


Lexus vehicles usually come with pretty average upkeep costs. According to data from RepairPal, the average annual repair cost for a Lexus vehicle is $551. Naturally, this cost can fluctuate based on vehicle model, age, driving conditions, maintenance practices, and more.



What happens if you put regular gas in a Lexus GX 460?


Use of unleaded gasoline with an octane rating lower than what is listed for your model year vehicle could potentially result in engine knocking. If the octane rating used is less than required, damage to the engine may occur and which could void the vehicle warranty.


Kevin's Auto

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.