What Is the Purpose of a Land Cruiser Sub Tank?

A Land Cruiser sub tank is an auxiliary fuel tank designed to increase the vehicle’s total fuel capacity. This feature is especially useful for off-road enthusiasts, overland travelers, and drivers who frequently journey through remote areas where fuel stations are scarce. The sub tank allows the Land Cruiser to travel greater distances without refueling by providing extra fuel storage.

Extended Driving Range

The main benefit of a Land Cruiser sub tank is its ability to extend the vehicle’s driving range. With more fuel, drivers can confidently explore rural or wilderness areas without worrying about running out of gas. This is a valuable advantage for camping trips, cross-country travel, or long work commutes in regions with limited fuel access.

Fuel Transfer Operation

In most Land Cruiser models, the sub tank works by transferring fuel to the main tank. Depending on the model, this process may happen automatically when the main tank’s fuel level drops or manually through a dashboard switch. This system ensures that fuel from the sub tank is ready when needed, keeping the vehicle running smoothly without frequent stops.

Improved Weight Distribution

Having two tanks helps maintain better weight balance across the vehicle. This can improve handling and stability, especially when carrying heavy loads or driving off-road where vehicle balance plays a key role in safety and performance.

Safe & Convenient Fuel Storage

A built-in sub tank provides safer fuel storage compared to carrying fuel in jerry cans. The fuel remains sealed inside the vehicle’s structure, reducing the risk of spills or leaks and protecting it from external damage. This makes the sub tank a reliable and practical feature for any driver who values preparedness and safety.