Just did my 40,000km service with Redline oil. Definitely smoother and quieter than Motul 8100, but it didn't get rid of the vibration in the gas pedal at low revs like I had hoped. I guess I'll have to live with that because a full gearbox flush with Redline D4 didn't help with it either. Still a noticeable difference but I don't know if I'd pay the regular aus price.