My brother in law stopped at the CO-OP the other day and filled his Ford up with what he thought was diesel. Well when he went inside to pay, he told the gal that he had $50 worth of diesel. Well the gal told him NOT to start his vehicle, as the driver had dumped 8,000 gal. of unleaded in the diesel tank over night, and they had just called and told her of the goof!
So ya better smell the nozzle too, even if it is green...