Add 44 litres of extra fuel to your INEOS Grenadier with this auxiliary tank, co-developed by Stars Overland. Fit it on its own for 134 litres total, or pair it with our 143L replacement main tank for a combined 187 litres, close to 1,500 km of range on the official petrol consumption figure.
The tank fills through the Grenadier's original fuel inlet, so there's no second filler to deal with. Fuel transfer is controlled by a physical switch or from your phone. The externally mounted pump cuts power automatically when the auxiliary tank runs empty. No exhaust modifications are needed.
Key Features:
- 44-litre auxiliary capacity: works alone or with the 143L replacement main tank
- Uses the original fuel inlet: fill the vehicle as normal, with no extra filler cap
- Dual control: operate fuel transfer by physical switch or by app
- Smart fuel pump: externally mounted, and switches off automatically when the tank is empty to protect the pump
- No exhaust modifications: bolts in around the factory exhaust
- Flush-mount design: no protrusion below the chassis, original approach angle maintained
- Vehicle-specific design: developed from 3D scans of the vehicle for an exact fit
- 430 stainless steel construction for maximum impact resistance: 3mm bottom plate and 2.5mm side plates
- Fully welded and traceable: hand-welded by certified welders, with a laser-etched traceability code on every tank
- Aluminium heat shield: dissipates exhaust heat away from the tank
- Reinforced stainless steel mounting brackets: stable under full fuel load and continuous vibration
What's Included:
- 44L auxiliary fuel tank
- Fuel pump with smart switch
- Mounting brackets and hardware
- Fuel hoses and fittings
Range Comparison (official petrol consumption, 12.6 L/100km):
| Setup | Total capacity | Approx. range |
|---|---|---|
| Factory tank only | 90 L | ~714 km |
| Factory tank + 44L aux | 134 L | ~1,065 km |
| 143L replacement + 44L aux | 187 L | ~1,485 km |
Real-world range varies with load, terrain and driving style.
Ideal For:
- Grenadier Station Wagon and Quartermaster owners who want more range while keeping the factory main tank
- Long-distance and remote trips where fuel stations are far apart
- Owners of our 143L replacement tank looking for maximum range
- Builds carrying extra weight, roof tents or larger tyres, which raise fuel consumption
Technical Specifications:
- Fitment: INEOS Grenadier Station Wagon and Quartermaster, petrol models
- Tank type: Auxiliary tank
- Capacity: 44 L (187 L total with our 143L replacement main tank)
- Weight: 23 kg (empty)
- Material: 430 stainless steel (3mm base, 2.5mm sides) for maximum impact resistance
- Filling: Via original fuel inlet
- Fuel transfer: External pump with smart auto cut-off; physical switch or app control
- Exhaust modification: None required
- Warranty: 1 year
- Co-developed by: Stars Overland
