Drove from santander to salou/Terragona and back to bilboa over the easter....noticed all repsol garages approx €1.67 a litre of diesel (on motorways and in villages/towns), some garages and others at supermarkets though approx €1.40 a litre...that's a serious difference in price,I wonder is the quality the same...I was chatting to a Spanish lad who recons there's more additives in the repsol fuel.