Lexus · Midsize cars · Gasoline
Lexus GS: MPG and annual fuel cost, 2020
The Lexus GS was last rated in the data for model year 2020, at 23 MPG combined, tied for 10th of 12 midsize cars, in the bottom quarter.
- 23MPG combinedtied 10th of 12 in class
- $3,550a year in fueltied 10th of 12 in class
- 388g/mile CO2
Where it stands
Compared only with the gasoline models of its class it is tied for 4th of 6 gasoline midsize cars, in the lower half. The median of that narrower group is 23.5 MPG, against 27.5 MPG for all midsize cars together.
Across every class it is tied for 15th of 39 gasoline models, in the upper half.
In its class, just ahead of it is the Lincoln MKZ at 24 MPG and just behind it is the Bentley Mulsanne at 12 MPG.
Fuel cost and CO2
At 15,000 miles a year with 55% of them in the city, with premium gasoline at $5.48 per gallon, the annual fuel bill of the most efficient version is about $3,550. That is $900 more than the midsize cars median of $2,650.
Tailpipe CO2 is 388 g/mile, 66 g/mile above the midsize cars median of 321.5.
Rated versions
In the city the most efficient version is rated 20 and on the highway 28, 8 better on the open road. 4 versions are rated for 2020. The most efficient, GS 350: 3.5 L, 6 cyl, Automatic (S8), RWD, gets 23 MPG; the least efficient listed, GS F: 5.0 L, 8 cyl, Automatic (S8), RWD, gets 19 MPG, a gap of 4 MPG. With the file's assumptions that gap is worth about $800 a year in fuel.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile |
|---|---|---|---|---|---|
| GS 350: 3.5 L, 6 cyl, Automatic (S8), RWD | 23 | 20 | 28 | $3,550 | 388 |
| GS 350 F Sport: 3.5 L, 6 cyl, Automatic (S8), RWD | 22 | 19 | 27 | $3,750 | 405 |
| GS 350 AWD: 3.5 L, 6 cyl, Automatic (S6), AWD | 21 | 19 | 26 | $3,900 | 422 |
| GS F: 5.0 L, 8 cyl, Automatic (S8), RWD | 19 | 16 | 24 | $4,350 | 472 |
Year by year
The Lexus GS is in the data for 2 of the 8 model years from 2019 to 2026. Its best combined rating went from 26 in 2019 to 23 MPG in 2020, down 3 MPG. The number of rated versions shrank from 6 to 4. Fuel cost for the best version is $3,550 in the latest data against $3,150 in 2019, although the file applies today's fuel prices to every model year, so that change comes from the rating, not from prices.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2020 | 4 | 23 | 19 | $3,550 | 388 | 28 |
| 2019 | 6 | 26 | 19 | $3,150 | 347 | 29 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| Buick Regal | Gasoline | 26 | $3,150 | 2020 |
| Ford Fusion | Gasoline | 27 | $2,500 | 2020 |
| Acura RLX Hybrid | Hybrid | 28 | $2,950 | 2020 |
| Bentley Mulsanne | Gasoline | 12 | $6,850 | 2020 |
| Kia Optima Plug-in hybrid | Plug-in hybrid | 41 | $1,650 | 2020 |
Rated almost identically and covered by this page:
- Acura RLX 23 MPG, $3,550 a year, 1 version, last rated 2020
Compare and rank
Rankings: Midsize cars.
Data: US EPA and DOE, as prepared in methods and data.