Spacecraft maintanance

So, how exactly does this work?

I moved some into my space station and two shuttles hogged 1000 units each.

Shouldn't they just pick up what they need for their mission?

Yes LG. They should you would have thought. Its just one of those perculiarities. You will find some auto load a 100, some none at all...

Unload some before loading the shuttle if you must cram as much as possible into your flight. After all, the shuttle only needs one maint unit per flight (two for a return trip).

On this topic, anyone know if shuttle flights consume fuel, like solid missile fuel I would presume? I dont see any numbers on it anywhere.

Tested it: no fuel consumed.

OK. Thanks for reporting that.