Hi, in my opinion no, it does not seem related to the origin of the bubbling.
On the other hand I had thought of using the exhaust gas sampling of the EGR to bubble the water, good or bad idea?

Hi, I'm new here, I tried riding 5 liters of rapeseed oil in 20 liters of GO and just for the smell it's worth it stinks a lot less. In my opinion it can work well but mixed in GO, pure oil is another story, HBV is much more viscous, this ...