So I goes into Motorworld/Charlie Browns or whatever its called for some oil,asks the bloke if the 15 in 15/40 is the thickness of the oil,he looks at me and says yeah,what cars it for like mate..I say Escort Cosworth, he says yeah theyve got the Zetec lumps in so that`ll be fine...........I just hit the floor laughing my tits of,then said ,nice one pal,thats what I thought.