1. Great Oil
I've used this oil in my R3 race bike and ZX6R track bike for over a year. Oil analyses by Blackstone Labs on both bikes shows it holding up really well, a little clutch wear on the ZX6R but nothing too serious. The R3 has almost 40k miles and I thrash it hard, but it tests average or better with this oil. Changed every 2 race/track days, with a new Hiflofiltro every other change.