NOT KNOWN FACTS ABOUT PEUGEOT ADBLUE REMOVAL

I have carried out something else so I needed to share my Answer in an effort to try to aid Some others who may have the exact same challenge. I failed to set a hole in my fuel cap (I have older model devoid of white or black dot in addition to it) but I have pull off black rubber ring through the neck of the gasoline tank which can be benith cap a