The Thruster Fuel is used in Thrusters. It's used to power them so they can give a boost to the ship's speed. It is more efficient than explosives so it is highly recommended to make instead. Some ships dedicate themselves to the sole purpose of making fuel, seeing as it is quite inefficient at 30 seconds per 1 fuel.
Did you know?
The first thruster fuel that is added to the thruster gives 1/64 fuel power and then the second one gives 3/64 fuel power.
1/64 First fuel added
3/64 Second fuel added
5/64 Third fuel