Joel, I buy them from the main dealer in Adelaide. His name is Bruce Pavier and
has the stuff out at Silverlake Rd Mylor in the hills 0883885294, he discounts for
club members NISSAN SVD etc. There are also a number of dealers in the burbs, Beaumont Nailsworth Thebarton. Look under lubricants in the Yellow Pages. I also use AMSOIL for the motor gearbox and diff. Got onto it from Eric the guy who was the head mechanic for the Winfield GTR's that that took Bathurst. Its fully synthetic
comes in all ranges with applications from stock to indy car and they have a turbo release which I use. Check their website www.amsoil.com. When I was at the clipsal I was checking out the stone brothers racing garage, they were putting it
in one on of their cars, when I asked they said not to believe the advertising on the cars it was the only oil they would use and other teams were using it as well.
You dont dont have to buy known name brands to get the best. My advice, buy the biggest filter that will fit, its like bolting on a bigger sump without the cost.