Maybe this is general knowledge but I was in at Kawasaki Newcastle on Saturday getting some oil. I have previuously been running fuchs oil from supercheap, Comp 4 Synthetic (they also sell semi synthetic). The bloke at kawasaki advised that as I don't do track work, the semi synthetic will be fine for me, then picked upt he comp 4 synthetic. I pointed out that he had picked up the synthetic and he then explained that the semi synthetic is bugger all synthetic, the comp 4 is actually semi synthetic also, but has a far greater portion of synthetic - it is not fully synthetic (Kawasaki also sell the fully sythetic). It is a bit deceptive if your buying from someone who doesn't stock the fully sythetic or who doesn't explain it to you.
Good service from Newcastle Kwaka!