What Does “Sub” Mean in the Toyota Land Cruiser?
The Sub in Toyota Land Cruiser refers to the auxiliary or secondary fuel tank found in certain models. This sub tank works alongside the main fuel tank to extend driving range, making it a valuable feature for long-distance travel, overlanding, and remote expeditions. The system is common in specific Land Cruiser series and markets where extended fuel capacity is necessary.
Purpose of the Sub Tank
- Extended Range – Allows drivers to cover greater distances without refueling.
- Emergency Backup – Acts as a reserve supply when the main tank runs low.
- Adventure Ready – Designed for areas with limited fuel station access.
How the Sub Tank System Works
- Fuel Transfer – In some setups, fuel is pumped from the sub tank to the main tank.
- Direct Feed – Other systems let each tank feed the engine separately.
- Control Method – Switching can be manual or electronic, depending on the model.
Land Cruiser Models with Sub Tanks
- 70 Series – Widely available with dual tanks in certain markets.
- 80 Series and 100 Series – Some trims include factory-installed sub tanks.
- Custom Installs – Aftermarket kits allow owners to add sub tanks to other models.
Benefits for Drivers
- Peace of Mind – Reduces fuel anxiety during long trips.
- Versatility – Useful for towing, off-road travel, and extended road trips.
- Optimized Weight Balance – Tank placement can help distribute vehicle weight evenly.
The Sub in Toyota Land Cruiser is a practical feature for drivers who venture far from fuel sources. By increasing range and providing a backup supply, it enhances the Land Cruiser’s reputation as a dependable long-distance and off-road vehicle.