You know, i'm beginning to think it is all in how we "approach" a problem. For example with this Fuel thingy. If i modify the ceasefire ability which in the buff the ability calls, there is a numownerships and target list, if those ownerships were friendly only, instead of friendly and enemy and was set to happen, say every 10, or 15, or even 30 minutes into the game after having "one" ship carry this ability, say the advent colony ship for the advent, then it would activate every... 30 minutes. So the advent fleet would stop. The length of the ability can be set as well to say how long it lasts, and -1 would make it forever!!! Haha, so something like maybe 10 minutes would be long enough.
And the range can be increased or decreased, or the number of ships designated as targets, which is currently -1, meaning all, could be adjusted as well, making it say 5 ships at level one, 10 ships at level 2 or 20 ships at level 3.
This would mean not making each ship carry the ability by itself, just one ship for the entire fleet. Or having each ship carry just one ability that would shut down engines, weapons and movement all in one ability instead of having an ability for each of those desired states to produce what we would in-game think of as a fuel deficiency. 
What do you think? I can test this with a modified ceasefire ability and let you know what happens, but it may be an approximation to what we want, if not the exact state.
Of course if means not having re-fuelers reach the fleet to get them active again, but rather an imobile time, while the engines re-charge, or we could call it that. 
-Teal