Thew silos don't stop consuming light oil even when there tanks are full. Also, you can't attach wires to the silo tanks (I don't know if that's intentional or not).

This should be impossible. The silo-tank is really only a tank without additional behavior. Light oil is only consumed on missile start (one-time and per script).
Is it possible that the light oil is consume elsewhere or the pipe network is still filling?

If the problem still occurs please remove the pipe connection to the tank and see if it gets emptier.

Apologies, to clarify; the silos consume the appropriate amount of fuel when you launch, and the tank says that it has 25,000 light oil in it, but even if it's full, fluid can still slowly be pumped into the tank as if it weren't full. Though further testing in a lab world doesn't seem to yield the same results. I'll do more testing and let you know if I see any weird behavior, thank you, and sorry for reporting something that doesn't seem to be a bug!

Oh! I think I know what's going on. According to the menu that pops up when you click on the tank, it has its own pipeline even when it's disconnected from the network completely. Even after removing the pipe connection to the tank, the fake pipeline will continue to empty into the tank until it's full. Once the tank is full, it stops, but the capacity of this fake pipeline seems really variable? Some tests had it go up to 128k, others only had it go to 25k. Even weirder, if the fake pipeline gets filled, and the tank is filled, if you close the menu and check the tank status again, the fake pipeline is just gone, though this also seemed inconsistent. I have some image links below if you want visuals:
(These are hosted on my own cloud)

Tank full, fake pipeline partially full:
https://cloud.astragroup.info/s/jBzbJBxFB2xxn8G

Tank Full, fake pipeline also full. Sometimes I got 128k, and sometimes I got only 25k, also one pipe can only hold 100 fluid, so the extra pipe there doesn't seem to matter, and I got variable results with the fake pipeline with and without that extra pipe on the tank
https://cloud.astragroup.info/s/TAWrAGYQgKXwb8E

This one is just an example of the fake pipeline disappearing:
https://cloud.astragroup.info/s/n2e25ZspMBLFNDT

Hopefully these tests are useful to you? And hopefully there's not something super obvious that I'm just missing. Anyways, thank you for your time!

Thanks for testing this so extensively! The screenshots will definitely be useful for solving this.
Unfortunately I had no luck reproducing this problem yet so it's a bit hard to fix it.

I'll keep on it and will update this thread when I have new information.