Right, it is only barely visible in the screenshot, but that is why the ring is set as Tanker as well so that it doesn’t auto-refuel from other tankers. This way the condition won’t ever trigger unless the actual harvester runs full.
I also set the minimum fuel of the ring close to the maximum, -in this case 13 million liters-, so it starts mostly maxed out still. The ring will expend minimal fuel while moving which brings it back under 100%, so there is no harm completely refueling it either once around the giant.
Aha I missed that detail.
Also using the minimal fuel as a ‘maximum under full’ is genius.
Thank you for showing such an interesting idea, one that I’ve readily adopted (including the slightly silly name of ‘Propulsion Ring’. It gives me all sorts of sci-fi vibes, which is the point of Aurora4x after all. 
1 Like
Happy to help. He, I guess that is why the name stayed with me as well. Aurora is like the book version of all scifi games, where your job is to imagine all the details yourself. For this purpose, the more descriptive a name, the better.