The current Jaguar XJ covers up to 1,100 km on a full tank, based on combined-cycle consumption. Figures below are the best-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 1982–1986 | Combustion | 728 |
| 1986–1994 | Combustion | 864 |
| 1994–1997 | Combustion | 786 |
| 1997–2003 | Combustion | 681 |
| 2003–2009 | Combustion | 1,049 |
| 2009–2015 | Combustion | 1,367 |
| 2015–2021 | Combustion | 1,100 |
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.