I wouldn’t have had such a head for it, or would know it more precisely if I hadn’t had HU/AU at the beginning of the year. I didn’t happen to have the necessary reps in the workshop. I don’t know that the examiner even looked at the gas system, let alone the tank (I had the whole trunk full of bumps). The friendly said recently, that must be absolutely necessary. At the TÜV/DEKRA I still did not ask, because I simply didn’t come to it during the day. So far I haven’t really thought about it, but somewhere I read something about CAP and GWP for gas tanks in vehicles recently in the shed. Often one reads that this has to be done every 2 years with HU, some write, that it is only necessary every 10 years (and then an exchange is cheaper), others think, with a new legislation that would be obsolete, …. and ten other opinions more. Or does this only apply to natural gas tanks? What is it true then?? Does someone really know what concrete gas system is installed in Italy?