The current Mazda 6 covers up to 1,348 km on a full tank, based on combined-cycle consumption. Figures below are the best-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 2002–2005 | Combustion | 1,000 |
| 2005–2007 | Combustion | 1,049 |
| 2008–2010 | Combustion | 1,143 |
| 2010–2012 | Combustion | 1,231 |
| 2012–2018 | Combustion | 1,265 |
| 2018–2024 | Combustion | 1,348 |
Range is calculated from each variant’s fuel tank capacity and combined-cycle consumption (tank ÷ consumption × 100), for the best-range variant in each generation — real-world range varies with driving style and conditions. Figures outside a plausible range for the tank size are excluded.