Placing a train requests it to be filled with fuel. Trains that request fuel will wait to automatically move until the requests are filled.

Settings

• Fuel item to be requested
• Number of stacks to request (set to 0 to disable mod)
• Override preexisting fuel requests from blueprints or other mods

My mods are made 100% by humans, with no computer generated code or graphics.
If you have a mod idea, let me know and I can look into it.