What Is a Toyota Land Cruiser Dual Tank Setup?
Some Toyota Land Cruiser models are equipped with a dual tank setup, which means they have two separate fuel tanks, a main tank, and a sub- or auxiliary tank. This configuration increases total fuel capacity, giving the vehicle a longer driving range without the need for frequent refueling.
How It Works
In a dual tank system, the engine draws fuel from the main tank. The sub-tank stores additional fuel and transfers it to the main tank when needed. This transfer is typically controlled by the driver using a dashboard switch. An electric or manual pump moves the fuel through dedicated lines, and some models feature a separate gauge or warning light to monitor sub-tank levels.
Benefits of a Dual Tank Setup
- Extended Range – Travel longer distances between refueling stops.
- Off-Road Convenience – Maintain extra fuel in remote areas where stations are scarce.
- Fuel Management – Control when and how reserve fuel is used.
Land Cruiser Models with Dual Tanks
Dual tank setups are common in…
- 70 Series – Utility and troop carrier variants in markets like Australia, Africa, and the Middle East.
- 80 Series – Some non‑U.S. versions came with a factory-fitted sub tank.
- 100 Series and 105 Series – Certain diesel and expedition‑spec models.
- Special Utility Versions – Mining and government service vehicles often feature dual tanks from the factory or as dealer-fitted options.
Maintenance Tips
- Inspect tanks and fuel lines regularly for leaks or corrosion.
- Test the transfer pump periodically to ensure proper function.
- Keep both tanks clean and avoid letting fuel sit unused for long periods.
A Toyota Land Cruiser dual tank setup offers practical advantages for anyone who travels long distances or operates in remote areas. By understanding how the system works and maintaining it properly, owners can enjoy extended range and greater confidence on every journey.