Does the 2026 Lexus GX need premium gas?
Yes. Premium.
$424extra a year
- Premium listed for the 550 Premium AWD.
- All 3 trims list premium.
- Required or only recommended: the data does not say.
- 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 |
|---|---|---|---|---|---|
| 550 Premium AWD | 3.4L 6cyl | Premium | 17 | $2,259 | $2,682 |
| 550 Overtrail AWD | 3.4L 6cyl | Premium | 17 | $2,259 | $2,682 |
| 550 Luxury AWD | 3.4L 6cyl | Premium | 17 | $2,259 | $2,682 |
Rivals
| Car | Cheapest trim | Grade |
|---|---|---|
| 2026 Lexus GX | 550 Premium AWD | Premium |
| 2026 Audi SQ5 Sportback | TFSI Premium AWD | Premium |
| 2026 Jeep Grand Wagoneer L | 85th Anniversary 4x4 | Regular |
| 2026 Toyota Sequoia | SR5 RWD | Regular |
| 2026 Audi SQ5 | TFSI Premium AWD | Premium |
| 2026 Porsche Macan | AWD | 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