Roscoe
Chaplain
Penrite in Australia always for me........ doing an oil change soon on the rocket thinking of using the Racing 15/50 have always used it in various different bikes and never had an issue. Triumph shop near me swear by Castrol..... I use that in my cars but only ever tried it once in a bike it was a Kwaka 1000 GTR very hot running bike and it didn't like it gear change became clunky.