I can see from the manual the manufacturers recommend SAE10-40, but which type? Nowadays the manufacturers (I've always stuck to Smith & Allen) seem to have semi synthetic and fully synthetic, other makes say there have a Mineral oil. It is all getting a bit confusing - especially when the same oil reservoir serves the engine, clutch and gearbox, a little guidance is needed.....

 

 

you need an oil with a JASO   MA2   rating   meaning that the oil is ok to use with a wet clutch

Mineral.

 

Re the JASO MA2 - thanks for that,  I see the both the semi synth and fully snyth 10/40 I'm looking at has that rating.