alright guys went down to autobarhn this afternoon and the guy that actually worked there was pretty "in the loop" with engine oil. He explained that rating of oil is aus is different to europe, here 100% snythetic really mean that its a min 78%. Motul been from france(?) mean they can't put 100% on there(4100), but by looking at the gradings it shows that its better than most the oils out there. For aus standard turbo light is 100% synthetic.
What was really amazing that some brands publish 100% synthetic and based on the gradings it is only as good as some semi-snthtetics (and worse that the turbolight 4100).
Anyways it was better than the valvoline and the edge was way too thick to use.
I picked up another bottle of motul turbo light 4100 and gonna change it soon. But like previously mentioned it is more important how often u change the oil rather than gettting the best oil and doing 10k on it.
From my point of view thread closed and thanks for everones input, hopefully future searches find this tread informative. BTW might be a good a idea to add this info to the oil sticky? i mean everyone is stating their opinion but no one has the facts/evidence to support them or just bs 300V and 300V (or the thread is just too long and people are cbf reading it lol