⚠️ Land Rover manufacturer position
TOPIx typically requires tank drop with exhaust/undershield disruption on Discovery. Wrong fuel voids fuel-system warranty.
Vehicle information
| Make | Land Rover |
|---|---|
| Model | Discovery |
| Market status | Sold new in the US; US diesel offered on select model years (roughly 2017–2020) |
| Body styles | SUV (three-row) |
| Generations | L462 (2017–present US) |
| Engine options | Gasoline: 2.0L turbo I4, 3.0L I6 supercharged/MHEV Diesel: 3.0L turbo-diesel (select US years) Hybrid: MHEV where equipped |
| Fuel tank capacity | 23.5 gal (89 L) |
| Fuel system | Direct injection gasoline or diesel; saddle tank on many builds |
| Access method | Tank drop usually required |
| Anti-siphon | Yes — capless filler; OEM extraction only |
| Service portal | JLR TOPIx (topix.jaguarlandrover.com) |
Misfuel risk High
Large SUV tank and past US diesel availability mean truck-lane nozzle mistakes and gasoline-in-diesel events are expensive if the engine runs.
If the engine was not started
Keep engine off; complete TOPIx drain and refill with correct fuel.
If the engine was started
Full fuel system service plus HP pump and injectors on direct-injection engines; diesel may need DPF/SCR assessment.
Access procedure
- Depressurize and disconnect battery per TOPIx
- Drain fuel with approved equipment
- Support tank and remove straps after line/filler disconnect
- Clean modules and inspect saddle-tank sides
- Reinstall and prime; clear adaptives if instructed
Notes
- Saddle tank may have two pump modules — both sides may need inspection after contamination
Related models
- Discovery Sport
- Range Rover Sport
Frequently asked questions
Discovery vs Discovery Sport — same fuel procedure?
No. Discovery usually needs tank drop; Discovery Sport may differ — use the model-specific TOPIx procedure.
What if only a small amount of wrong fuel was added?
JLR still recommends full drain and filter service; do not rely on dilution if the engine has not been run.
Need professional misfuel recovery?
Find a certified operator or read consumer guidance for your next steps.
Find an operator Consumer guidance