I had mystery oil in my bvv gas a few times. Not sure if it would cause it to turn blue like that… What is the residue like on a q tip after you wipe it out, waxy or fine power like carbon?
Other thought, how new is this machine? Looking at your profile you are a new member and just got a 1lber… maybe you got thread tape in there or something from the manufacturing in there you can’t see. I know my system had thread tape shitting out places.
How does your bho look? are there particles in it or is it clear? Post a pic. We love pics!