Well, I know for a fact because the companies delivery driver told me,
“@@@@“ “@@@@@“ in Stockport, collect contaminated fuel from the AA and RAC fuel contamination sites
(All collected from missfuelled vehicles)
in a tanker, this mix of petrol and diesel gets chemically washed and left to seperate back into petrol / diesel before he mixed it 50:50 with new clean fuel then sells it to small independent garages at a reduced rate. the delivery driver tells me that the petrol is ok but the diesel is a weird cloudy colour and isn’t 100% true clean fuel, which is why I use a high grade fuel from a well known stations for all my fuel