- Newest year: 2020
- Gas
- Large cars
- Same as 2019
2017-2020 Genesis G80 MPG & Fuel Cost
4 model years · 18–22 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 6 of 10 large car configurations, MY2020. Ranked against all rated configurations, not sales-weighted.
2017-2020 Genesis G80 at a glance
The 2017-2020 Genesis G80 covers 4 model years in the EPA database (21 configurations in all), rated 18–22 MPG combined. The newest model year, 2020, costs about $3,090 a year to fuel for its most efficient version, the G80 3.8L 6-cyl RWD (21 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2018 and 2019; 2020 repeat the values of the year before. The best combined rating in the generation, 22 MPG, was reached in 2017 and 2018.
2017-2020 Genesis G80 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2020 | Gas | 18–21 MPG | $3,090–$4,510 | Same EPA ratings as 2019 |
| 2019 | Gas | 18–21 MPG | $3,090–$4,510 | Ratings changed |
| 2018 | Gas | 18–22 MPG | $3,030–$4,510 | Ratings changed |
| 2017 | Gas | 18–22 MPG | $3,030–$4,560 | First year |
What the 2020 G80 3.8L 6-cyl RWD costs to drive
Per month
$258
$3,090 a year ÷ 12
Per 25 miles
$5.15
Per 100 miles
$20.60
Five years
$15,450
5 × the yearly cost, prices held at today's level
vs the large car median
$230less a year
Class median $3,320 a year, MY2020
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2020 Genesis G80 MPG
EPA lists the same ratings for the 2020 Genesis G80 as for the 2019 model, so the configurations and costs are the ones in the 2019 section above.See 2019
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G80 3.8L 6-cyl RWD (Most efficient) | 3.8L 6-cyl | RWD | 18 | 26 | 21 | $3,090 |
| G80 3.8L 6-cyl AWD | 3.8L 6-cyl | AWD | 18 | 24 | 20 | $3,250 |
| G80 3.3L 6-cyl turbo RWD | 3.3L 6-cyl turbo | RWD | 17 | 25 | 20 | $3,980 |
| G80 3.3L 6-cyl turbo AWD | 3.3L 6-cyl turbo | AWD | 17 | 24 | 20 | $4,080 |
| G80 5.0L 8-cyl RWD | 5.0L 8-cyl | RWD | 16 | 24 | 19 | $4,270 |
| G80 5.0L 8-cyl AWD | 5.0L 8-cyl | AWD | 15 | 23 | 18 | $4,510 |
4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2019 Genesis G80 MPG
18–21 MPG · $3,090–$4,510/yr
Versus 2018: The most efficient configuration moves from 22 to 21 MPG, down 1. Its annual cost goes from $3,030 to $3,090, $60 more.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G80 3.8L 6-cyl RWD (Most efficient) | 3.8L 6-cyl | RWD | 18 | 26 | 21 | $3,090 |
| G80 3.8L 6-cyl AWD | 3.8L 6-cyl | AWD | 18 | 24 | 20 | $3,250 |
| G80 3.3L 6-cyl turbo RWD | 3.3L 6-cyl turbo | RWD | 17 | 25 | 20 | $3,980 |
| G80 3.3L 6-cyl turbo AWD | 3.3L 6-cyl turbo | AWD | 17 | 24 | 20 | $4,080 |
| G80 5.0L 8-cyl RWD | 5.0L 8-cyl | RWD | 16 | 24 | 19 | $4,270 |
| G80 5.0L 8-cyl AWD | 5.0L 8-cyl | AWD | 15 | 23 | 18 | $4,510 |
4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2018 Genesis G80 MPG
18–22 MPG · $3,030–$4,510/yr
Versus 2017: The most efficient configuration stays at 22 MPG. Its annual cost stays at $3,030.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G80 3.8L 6-cyl RWD (Most efficient) | 3.8L 6-cyl | RWD | 19 | 27 | 22 | $3,030 |
| G80 3.8L 6-cyl AWD | 3.8L 6-cyl | AWD | 18 | 25 | 20 | $3,250 |
| G80 3.3L 6-cyl turbo RWD | 3.3L 6-cyl turbo | RWD | 17 | 25 | 20 | $3,980 |
| G80 3.3L 6-cyl turbo AWD | 3.3L 6-cyl turbo | AWD | 17 | 24 | 20 | $4,080 |
| G80 5.0L 8-cyl RWD | 5.0L 8-cyl | RWD | 16 | 24 | 19 | $4,270 |
| G80 5.0L 8-cyl AWD | 5.0L 8-cyl | AWD | 15 | 23 | 18 | $4,510 |
4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2017 Genesis G80 MPG
18–22 MPG · $3,030–$4,560/yr
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G80 3.8L 6-cyl RWD (Most efficient) | 3.8L 6-cyl | RWD | 18 | 28 | 22 | $3,030 |
| G80 3.8L 6-cyl AWD | 3.8L 6-cyl | AWD | 16 | 25 | 19 | $3,370 |
| G80 5.0L 8-cyl | 5.0L 8-cyl | RWD | 15 | 23 | 18 | $4,560 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the G80 3.8L 6-cyl RWD: $4,200 in California and $2,690 in Texas, a $1,510 difference.
- California $4,200
- Washington $3,890
- New York $3,090
- Florida $2,920
- Texas $2,690
Similar cars
Closest combined MPG among MY2020 large car models.
Generations
- 2017-2020 (DH)
- 2021-2027* (RG3)
Frequently asked questions
What gas mileage does the 2017-2020 Genesis G80 get?
EPA rates the 2017-2020 Genesis G80 at 18–22 MPG combined across 21 configurations and 4 model years. The most efficient version, the 2018 G80 3.8L 6-cyl RWD, is rated 22 MPG (19 city, 27 highway).
Which years had the best MPG in the 2017-2020 Genesis G80?
The G80 3.8L 6-cyl RWD reached the generation's best combined rating, 22 MPG, in 2017 and 2018. The lowest top rating, 21 MPG, was in 2019 and 2020.
Did EPA ratings change during the 2017-2020 Genesis G80?
Yes. Ratings changed in 2018 and 2019. In 2020 the values repeat the year before.
How much does it cost to fuel a 2020 Genesis G80 per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the G80 3.8L 6-cyl RWD costs about $3,090 a year. Across all 6 configurations the cost runs $3,090–$4,510 a year. That is a $1,420 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2020 Genesis G80 100 miles?
About $20.60 per 100 miles for the G80 3.8L 6-cyl RWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $20.60 and $30.07 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2020 Genesis G80 more efficient in the city or on the highway?
The G80 3.8L 6-cyl RWD is rated 18 city and 26 highway MPG, so it is more efficient on the highway, by 8 MPG.
How does the 2020 Genesis G80 compare with other large car configurations?
The G80 3.8L 6-cyl RWD costs about $3,090 a year to fuel, $230 less than the class median of $3,320, and less than 6 of 10 large car configurations. The comparison covers all 115 rated large car configurations for MY2020, not weighted by sales.
Is the 2020 Genesis G80 different from the 2019 model?
No. EPA lists the same ratings for 2019 and 2020: 6 configurations rated 18–21 MPG combined. See the 2019 Genesis G80 for that year.