EPA-verified MPG for all 28 variants (2020–2026)
840i by model year — click a row to jump to that year
| Year | Best MPG | Avg MPG | Variants |
|---|---|---|---|
| 2026 | 24 MPG | 24 MPG | 4 |
| 2025 | 24 MPG | 24 MPG | 4 |
| 2024 | 24 MPG | 24 MPG | 4 |
| 2023 | 24 MPG | 24 MPG | 4 |
| 2022 | 25 MPG | 24 MPG | 4 |
| 2021 | 25 MPG | 24 MPG | 4 |
| 2020 | 25 MPG | 24 MPG | 4 |