Does the 2026 Genesis G90 need premium gas?
Yes. Premium.
$343extra a year
- Premium listed for the 3.5T AWD.
- All 3 trims list premium.
- Required or only recommended: the data does not say.
- 64% of 55 sedans (2026) list premium.
12,000 miles a year. Gas $3.20. Premium $0.60 more.
| Trim | Engine | Grade | Mpg | Regular, a year | Premium, a year |
|---|---|---|---|---|---|
| 3.5T AWD | 3.5L 6cyl | Premium | 21 | $1,829 | $2,171 |
| 3.5T E-SC MHEV AWD | 3.5L 6cyl | Premium | 20 | $1,920 | $2,280 |
| 3.5T E-SC Prestige Black MHEV AWD | 3.5L 6cyl | Premium | 20 | $1,920 | $2,280 |
Rivals
| Car | Cheapest trim | Grade |
|---|---|---|
| 2026 Genesis G90 | 3.5T AWD | Premium |
| 2026 Audi A8 | L 55 TFSI AWD | Premium |
| 2026 Lexus LS | 500 Heritage Edition AWD | Premium |
| 2026 Cadillac CT5-V Blackwing | CT5-V V-Series Blackwing RWD | Premium |
| 2026 BMW 7 Series | 740i RWD | Premium |
What this cannot tell you
Check the fuel door or manual before you fill.
Gas prices and the premium gap change by state.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree