Am I the only one who did not know which diesel to put in my van? At the last stop in Spain I ended up putting the top price diesel in but at an earlier fill-up, I put in "Gasoil B" not knowing the difference from "Gasoil A". It turns out that "Gasoil B" is tax free and for industry and agriculture. I filled up with 'red' diesel. I hope that I never get dipped over here, for it would not be easy to prove my ignorance.