Lexus GX

Fuel economy, running costs and specs by model year

The Lexus GX appears in this database in 5 model years, from 2016 to 2020, offered with gasoline power. Combined economy ranges from 16 to 17 MPG across those years, with annual fuel costs of $4,700 to $5,000 at 15,000 miles.

Fuel economy by year

How it compares

Against the average standard sport utility vehicle 4wd in this dataset (about 23 MPG), the GX sits roughly 6 MPG below that mark on average, making it a thirstier-than-average choice for its class.

Five-year fuel cost

Fuelling a GX for five years at the EPA's 15,000-mile basis costs roughly $23,500 to $25,000, averaging about $24,250 across the versions here. That is the energy bill alone — it excludes insurance, maintenance and depreciation, which for most owners together exceed what goes into the tank.

How it changed over time

Between 2016 and 2020 the GX's average combined economy slipped from about 17 to 16 MPG. Redesigns, new engines and added hybrid or electric versions are usually what move the number, so the year you choose can matter as much as the model.

Best year for fuel economy

The 2016 GX has the strongest average combined economy in this database at about 17 MPG, while the 2017 is the lowest at about 16 MPG. If running cost is your priority, that is the year to target on the used market; later years may add equipment or safety features instead.

2020 GX at a glance

Use the comparison tool to set the GX against a rival, or go back to all Lexus models.