FACTS ABOUT PEUGEOT ADBLUE DELETE REVEALED

Due to the fact previous diagnostics / code clearing drove 3 miles and light back on / engine turned off straight away advertisement blue filler cap removed and attempted to blow/suck as a result of cap to discover if ventilated. Cap is not really ventilated. still left cap off and tissue in filler neck for eighty miles/no lights came on.AdBlue is