Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
The oil thread gravitational pull is starting.....There is a standard for oil for wet clutches so clutch slip is easily avoided http://www.oilspecifications.org/articles/JASO_MA_JASO_MB.phpGearboxes should also have EP additives to reduce wear, but you rarely see that bit debated, it's always about the clutch because that's where you can feel the difference.Personally for road bikes I just buy any known brand bike specific oil, yes the prices are a rip off, but it saves having to understand all the oil threads. (for trials where the clutch feel is more important I use Motul 300v)
.... as long as it is to the right spec, I am happy.
Considering the service change of 1500 miles, when i also think the filter should be changed, there is no need for the extra expense of the "modern" motorcycle" oils which even the manufacturers like Fuchs admit to being standard oils in a more expensive can