Ok with lockdown cant get a co2 device but i sloped the car, filled the bottle half full sealed onto radiator,,,,,youl see vid 1 which is 5 mins in video 2 12 minutes in and video 3 20 mins.
i guess my dumb mechanic didnt do this as youl see by vid 3 it shows what i presume is indeed compression/exhaust gases into water///// Thank you for looking, the coolent did have a bottle of some hoodoo in it to hopefully plug leaks by mechanic,,, last vid is when engine is switched off...
1.mp4
2.mp4
3.mp4
20200415_144723.mp4