many thanks for rather pleasing information. I think I will install another tank for heating and battery charging. and use all the diesel I already have. At one time i was thinking of using all the red going to france filling up with french diesel (white) and putting this into the car, french diesel is cheaper than uk and the right colour. But as yet I havent done it. I am also rather glad theres more than me that has the same thoughts of our (probably better not to write this down but you can imagine what should be written here) . If you have never worked and are completely lazy you have the right government for you right now. Not many pbo readers fall into that bracket.