There was a popup that said -15 omni-gel when I repaired my vehicle. So apparently repairing your mako uses omni-gel. If the omni-gel that's used comes from a different pool then the popup message is misleading.
A fix that consists of "just accept it" isn't a fix worth being glad for. I didn't report this because I wanted help getting past this step in the game, I reported it because I wanted the devs to create a bug report so they can solve it in the future. Until they've done that there's no reason to be "glad".
Also, the solution you marked as accepted missed the point, as I pointed out in my reply to said post.
