How big isa the fuel tank on a freight train?
Freight trains don't have a single, large fuel tank like a car or airplane. Instead, locomotives (the engines) have their own fuel tanks. The size of these tanks varies considerably depending on the locomotive's type, size, and manufacturer, but generally holds between 4,000 and 6,000 gallons (15,000 and 23,000 liters) of diesel fuel. Some may be slightly larger or smaller.