Hey mate, perhaps take a look at Fuchs Silkolene. They're one of the only other oils in the OZ market featuring double-esther (like 300V), and when I buy it in bulk from the QLD distributor it works out at pretty reasonable compared with the Motul.

I use it in my race car (which uses a stroked Hayabusa motor), really nice stuff.

http://www.fuchslubricants.com/racin...ke-engine-oils