The current Mercedes-Benz G-Class covers up to 1,149 km on a full tank, based on combined-cycle consumption. Figures below are the best-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 1982–1990 | Combustion | 466 |
| 1990–1993 | Combustion | 691 |
| 1993–2000 | Combustion | 793 |
| 2000–2012 | Combustion | 881 |
| 2012–2015 | Combustion | 857 |
| 2015–2018 | Combustion | 970 |
| 2018–2024 | Combustion | 1,042 |
| 2024–present | Combustion | 1,149 |
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.