2018 Lexus GX

Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data

The 2018 Lexus GX is sold in the U.S. with gasoline power. The EPA lists 1 configuration for this model year, with combined economy from 16 to 16 MPG and an estimated annual fuel cost of $5,000 to $5,000 at 15,000 miles.

Key numbers

Model year2018
Vehicle classStandard Sport Utility Vehicle 4WD
Fuel type(s)Gasoline
Combined economy16-16 MPG
Best / worst combined16 / 16 MPG
Annual fuel cost$5,000-$5,000
Tailpipe CO₂548-548 g/mi
EPA smog rating3-3 / 10

What it costs to fuel

Across its configurations, the 2018 GX costs about $5,000 to $5,000 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $5,000. Over five years that is about $25,000 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.

Relative to an average new vehicle, this GX configuration spends about $13,500 more on fuel over five years.

For context, the average combined economy of standard sport utility vehicle 4wd in this dataset is about 23 MPG. The GX sits roughly 7 MPG below that mark at its midpoint, making it thirstier than average for its EPA class.

Configurations and fuel economy

VersionEngineDriveTransFuelCombinedAnnual fuel
GX 4604.6L 8-cyl4-WheelAutomaticGasoline16 MPG$5,000

Emissions, safety and size

The 2018 GX records tailpipe CO₂ of 548-548 g/mi, an EPA smog rating of 3-3 out of 10. The EPA classifies it as standard sport utility vehicle 4wd.

Compare this car

Open the comparison tool to line this 2018 GX up against any other vehicle in the database, or jump to other years and trims from the 2018 Lexus GX overview.

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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.