Does the 2026 GMC Yukon XL need premium gas?
No. Regular.
$0extra a year
- Regular listed for the Elevation RWD.
- Premium: 4 of 7 trims. Regular: 3 of 7 trims.
- Premium by choice: $424 more a year.
- 52% of 138 SUVs (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 |
|---|---|---|---|---|---|
| Elevation RWD | 5.3L | Regular | 17 | $2,259 | $2,682 |
| Elevation 4WD | 5.3L 8cyl | Regular | 16 | $2,400 | $2,850 |
| AT4 4WD | 5.3L 8cyl | Regular | 16 | $2,400 | $2,850 |
| Denali RWD | 6.2L | Premium | 16 | $2,400 | $2,850 |
| Denali 4WD | 6.2L 8cyl | Premium | 16 | $2,400 | $2,850 |
| AT4 Ultimate 4WD | 6.2L 8cyl | Premium | 16 | $2,400 | $2,850 |
| Denali Ultimate 4WD | 6.2L 8cyl | Premium | 16 | $2,400 | $2,850 |
Rivals
| Car | Cheapest trim | Grade |
|---|---|---|
| 2026 GMC Yukon XL | Elevation RWD | Regular |
| 2026 GMC Yukon | Elevation RWD | Regular |
| 2026 Ineos Grenadier Station Wagon | 4WD | Premium |
| 2026 Audi Q8 | 55 TFSI Premium AWD | Premium |
| 2026 BMW X5 | sDrive40i 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