Here's why:
* Diesel Fuel: Diesel locomotives use diesel fuel to power their engines. The amount of fuel they carry varies greatly depending on the size and type of locomotive. A large freight locomotive might carry several thousand gallons of diesel fuel, while a smaller switching locomotive might carry only a few hundred gallons.
* Electricity: Electric locomotives get their power from overhead wires or third rails, not from fuel.
So, the answer to your question depends on the specific type of train. If you are asking about a diesel locomotive, the amount of fuel it carries will vary widely.