Cheers guys is yours an 8v job Paddy ? Do they not rev as well ? I know diesels only go to 5k anyway, but compared to a Zetec ? I'm a bit of a big mileage merchant and do a fair bit of motorway work so don't want to listen to it screaming it's nuts off at 80 or louder than the 480 6x2 Scania that I'm trying to get past...............