- Gas
- Midsize cars
- MY2000–2020
Lexus GS MPG & Fuel Cost by Year
20 model years · 2000–2020
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Lexus GS fuel economy at a glance
EPA has rated the Lexus GS for 20 model years, 2000 to 2020. Across those years its combined rating runs 18–31 MPG. The latest model year, 2020, has 4 configurations rated 19–23 MPG combined and costing $3,520–$4,290 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2000 is the 2018 450h 3.5L 6-cyl RWD, at 31 MPG. EPA ratings go back to 1984: the earliest rating on this page is 18 MPG in 1993.
Lexus GS MPG by year
| Year | Gas (MPG) | Hybrid (MPG) | $/yr |
|---|---|---|---|
| 2013-2020 (L10) Generation page | |||
| 2020 | 19–23 | — | $3,520–$4,290 |
| 2019 | 19–26 | — | $3,140–$4,290 |
| 2018 | 19–26 | 31 | $2,560–$4,290 |
| 2017 | 19–26 | 31 | $2,560–$4,290 |
| 2016 | 19–26 | 31 | $2,560–$4,290 |
| 2015 | 21–23 | 31 | $2,560–$3,760 |
| 2014 | 21–23 | 31 | $2,560–$3,760 |
| 2013 | 21–23 | 31 | $2,570–$3,750 |
| 2006-2011 (S190) Generation page | |||
| 2011 | 20–21 | 23 | $3,460–$4,110 |
| 2010 | 20–22 | 23 | $3,490–$4,020 |
| 2009 | 20–22 | 23 | $3,490–$4,020 |
| 2008 | 20–22 | 23 | $3,490–$4,020 |
| 2007 | 19–22 | 23 | $3,490–$4,230 |
| 2006 | 19–22 | — | $3,650–$4,230 |
| 2000-2005 (S160) Generation page | |||
| 2005 | 18–19 | — | $4,230–$4,460 |
| 2004 | 18–19 | — | $4,230–$4,460 |
| 2003 | 18–19 | — | $4,230–$4,460 |
| 2002 | 18–19 | — | $4,230–$4,460 |
| 2001 | 18 | — | $4,460 |
| 2000 | 18–19 | — | $4,230–$4,460 |
Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.
Lexus GS generations
3 generations between 2000 and 2020. Open one for the table of every model year and configuration.
2020 powertrain options
Lexus GS MPG history, 1993–1999
| Year | Gas (MPG) |
|---|---|
| 1999 | 18–20 |
| 1998 | 18–19 |
| 1997 | 18 |
| 1996 | 18 |
| 1995 | 18 |
| 1994 | 18 |
| 1993 | 18 |
EPA re-estimated the ratings of pre-2008 vehicles under its 2008 method; these are the re-estimated values.
More Lexus models
Frequently asked questions
What is the Lexus GS's gas mileage by year?
EPA combined ratings for the Lexus GS run 18–31 MPG across model years 2000 to 2020. The latest year, 2020, is rated 19–23 MPG.
Which Lexus GS model year has the best gas mileage?
The 2018 Lexus GS 450h 3.5L 6-cyl RWD has the highest combined rating since 2000, at 31 MPG.
How much does a Lexus GS cost to fuel per year?
For MY2020, EPA-rated configurations cost $3,520–$4,290 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,520.
Has the Lexus GS's fuel economy improved over time?
Yes. The most efficient configuration moved from 19 MPG in 2000 to 23 MPG in 2020, 4 MPG more. Going back further, the best rating in 1984 was 18 MPG.
Is there a hybrid, plug-in or electric Lexus GS?
Yes. Hybrid versions are rated from 2007 to 2018 (23–31 MPG).
Which Lexus GS model years have the same ratings?
EPA lists identical ratings as the previous year for 2004, 2005. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.