Fuel Tank

The Fuel Tank is an upgrade in the Deep Sea Hunter series.

Information
The Fuel Tank in the submarine, is used to increase the fuel that the submarine carries.

Fuel
A fuel is any material that can be made to react with other substances so that it releases chemical or nuclear energy as heat or to be used for work. The concept was originally applied solely to those materials capable of releasing chemical energy but has since also been applied to other sources of heat energy such as nuclear energy (via nuclear fission and nuclear fusion).

In Deep Sea Hunter, The Fuel is a kind of (probably) gasoline, The Fuel appears as a bar that if it gets all blue, you will get back to the map, because the submarine don't will resist the pressure (probably).