Makes LexusIS

Lexus IS MPG

Its best-rated version reaches 26 MPG combined in 2016–2018, the IS 300. Its weakest year peaked at 18 MPG (2001 and 2003–2005).

lowest to best versionbest versionmedian of its classengine list turned over

681.8 gal

a year at 15,000 miles for the best 2026 version, the IS 350. Put it next to its 2001 predecessor, at your own mileage.

Compare in gallons

The Lexus IS has EPA ratings for 26 model years, 2001–2026, most often among compact cars. In 2004 its most efficient version still placed third from the bottom of 46 compact cars, where the Bentley Continental rated lowest.

Averaged over 2024–2026, the best version of the IS placed third from the bottom of 14 among compact cars rated at least three years in that span.

Among 16 compact cars, 2026

The IS placed 14th. The class leader was the Toyota Corolla at 50 MPG. The next higher rating, 24 MPG, belongs to the Genesis G70.

The IS, five years at a time

Average rating of its best version per span, placed in the class it sat in most often.

2004–08seventh of 24subcompact cars

2009–1312th of 31subcompact cars

2014–1838th of 52compact cars

2019–2328th of 34compact cars

2024–2612th of 14compact cars

Where the engine list turned over

2006
New: 2.5-liter 6-cylinder, 3.5-liter 6-cylinder. Best rating 18 → 24 MPG.
2016
New: 2.0-liter 4-cylinder. Best rating 24 → 26 MPG.
2026
Dropped: 2.0-liter 4-cylinder, 5.0-liter 8-cylinder. Best rating 25 → 22 MPG.

All 26 model years, best and lowest version

Model years	Best version	Combined	City / hwy	Lowest version	Versions
2026	IS 350	22	19 / 27	22	2
2022–2025	IS 300	25	21 / 31	20	5
2021	IS 300	25	21 / 31	22	4
2019–2020	IS 300	24	21 / 30	21	4
2018	IS 300	26	22 / 32	22	4
2016–2017	IS 200t	26	22 / 32	21	4
2014–2015	IS 250	24	21 / 30	21	6
2013	IS 250/IS 250C	24	21 / 29	22	4
2012	IS 250/IS 250C	24	21 / 29	21	5
2011	IS 250/IS 250C	24	21 / 29	20	5
2010	IS 250/IS 250C	24	21 / 29	20	4
2008–2009	IS 250	24	21 / 29	20	4
2006–2007	IS 250	24	21 / 29	21	4
2003–2005	IS 300	18	16 / 23	18	2
2002	IS 300	19	16 / 23	18	2
2001	IS 300	18	16 / 21	18	1

Version names in the EPA list: IS 200t, IS 250, IS 250 AWD, IS 250 C, IS 250/IS 250C, IS 300, IS 300 AWD, IS 350, IS 350 AWD, IS 350 C, IS 350/IS 350C, IS 500.

Same class, 2026

Toyota Corolla50 MPG Genesis G7024 MPG BMW M19 MPG Ferrari Purosangue12 MPG