What Is the Toyota Land Cruiser Sub Tank?

The sub tank in a Toyota Land Cruiser is an auxiliary fuel tank that works in conjunction with the main fuel tank to increase total fuel capacity. It is especially common in diesel variants of the 70, 80, 100, and 200 Series.

How It Works

• Purpose – Extends the vehicle’s range, useful for remote or expedition travel.
• Activation – A button inside the cabin pumps fuel from the sub to the main tank.
• Capacity – Typically ranges between 20-45 liters, depending on the model.
• Models with Sub Tank – HDJ80, HZJ70, 100 Series GX, and 200 Series diesel trims.

This system allows for greater fuel management and fewer stops when traveling long distances or off-grid.