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2021 Genesis G80 2.5T AWD (RG3)
Shown: 2021 Genesis G80 2.5T AWD (RG3). Photo: Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
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  • MY2017–2027

Genesis G80 MPG & Fuel Cost by Year

11 model years · 2017–2027

23 MPG
Combined
20 MPG
City
29 MPG
Highway
Annual cost · MY2027 G80 2.5L 4-cyl turbo AWD
$3,440

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

All Genesis models

Genesis G80 fuel economy at a glance

EPA has rated the Genesis G80 for 11 model years, 2017 to 2027. Across those years its combined rating runs 18–26 MPG. The latest model year, 2027, has 2 configurations rated 18–23 MPG combined and costing $3,440–$4,380 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2017 is the 2023 G80 2.5L 4-cyl turbo RWD, at 26 MPG. Model year 2027 is still being filled in by EPA, so its row may gain configurations.

Genesis G80 MPG by year

1820222426 201720212027 Gas 1820222426 201720212027 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
9698 20232026 Electric 9698 20232026 Electric
Combined MPGe: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Genesis G80: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG)Electric (MPGe) $/yr
2021-2027* (RG3) Generation page
2027 (partial) 18–23— $3,440–$4,380
2026 18–2396 $960–$4,390
2025 19–2497 $960–$4,290
2024 19–2597 $960–$4,130
2023 19–2697 $3,100–$4,170
2022 20–26— $3,100–$3,940
2021 21–26— $3,100–$3,810
2017-2020 (DH) Generation page
2020 18–21— $3,090–$4,510
2019 18–21— $3,090–$4,510
2018 18–22— $3,030–$4,510
2017 18–22— $3,030–$4,560

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.

Genesis G80 generations

2 generations between 2017 and 2027. Open one for the table of every model year and configuration.

2027 powertrain options

Gas · 2.5L, 3.5L
Combined
18–23 MPG
Per year
$3,440–$4,380
See gas configurations
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · premium gasoline $5.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Genesis G80's gas mileage by year?

EPA combined ratings for the Genesis G80 run 18–26 MPG across model years 2017 to 2027. The latest year, 2027, is rated 18–23 MPG.

Which Genesis G80 model year has the best gas mileage?

The 2023 Genesis G80 G80 2.5L 4-cyl turbo RWD has the highest combined rating since 2017, at 26 MPG.

How much does a Genesis G80 cost to fuel per year?

For MY2027, EPA-rated configurations cost $3,440–$4,380 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,440.

Has the Genesis G80's fuel economy improved over time?

Yes. The most efficient configuration moved from 22 MPG in 2017 to 23 MPG in 2027, 1 MPG more.

Is there a hybrid, plug-in or electric Genesis G80?

Yes. Electric versions are rated from 2023 to 2026 (96–97 MPGe).

Which Genesis G80 model years have the same ratings?

EPA lists identical ratings as the previous year for 2020. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.

How many generations of the Genesis G80 are there?

EPA data covers 2 generations of the Genesis G80: 2021-2027*, 2017-2020. Each has its own page with a table for every model year.