for both you guys (samuri and kinggtr) i woulg just grab the sougi s6000
its a good oil up there with the royal purple etc but so much cheaper and australian owned (i think)
put one lot in (~$60, just call gulf western and ask for a distributer in your area, autobarn and supercheap will be able to get it for you but you will pay rrp + freight)
leave it in there and check it every week, it'l start going black pretty quick, but its not breaking down, just dissolving the sludge in your motor (good oils go black quicker cos they are doing something, a cheap oil will look about the same colour after 5000kms)
once its fairly dark, change it
you'll get 2 changes out of the sougi to what you will out of the royal purple