DONT BUY IT especialy if the seller has an Irish accent.
Apparently there is a load going around the area at the moment at 60p a litre. The scam is that the pikeys are bringing over old tankers to scrap in the UK with full loads of irish 'red' Diesel (except its green). They put an acid in to get rid of the dye, unfortunatly it also gets rid of the lubrication. If you are lucky your fuel pump will last for the whole tank full.