EPA-verified MPG for all 7 variants (2020–2026)
GLS580 by model year — click a row to jump to that year
| Year | Best MPG | Avg MPG | Variants |
|---|---|---|---|
| 2026 | 16 MPG | 16 MPG | 1 |
| 2025 | 16 MPG | 16 MPG | 1 |
| 2024 | 16 MPG | 16 MPG | 1 |
| 2023 | 18 MPG | 18 MPG | 1 |
| 2022 | 18 MPG | 18 MPG | 1 |
| 2021 | 18 MPG | 18 MPG | 1 |
| 2020 | 18 MPG | 18 MPG | 1 |