My SD is nearing another oil change in a few hundred miles and although I've got 5L of oil already I was about to order some more, I've got a thing for oil, got bloody loads of the stuff in different grades I was about to order from the uusual supplier, you get 5L for the price of 4L, but then I noticed Busters motorcycles on ebay are doing 8L of Motul 10W40 for only £25.49 - thats only £3.18 a litre. Bargain