Used Motul 10-40 Turbolight semi. Very good oil, when compared to my previous chg from Q8 Advance 10-40, Motul beats Q8 hands-down. This is in terms of engine smoothness and noise.
Motul 300V is one of the premium oils around. It uses esther as its oil base. Esther is considered to be more lasting and will sheers only at highly extended oil change intervals. BUT, Motul 300V comes with a high price premium. If i'm not mistaken its about RM280/ 4 litre. When it comes to competition usage, most garages choose this particular oil...for whatever reason only known to them.
Currently i'm using MObil1 5-50 full syn. Another very good oil which retails now for about RM210/4 litre. About the same price for Q8 F1. HOwever, I have heard that Q8 oils sheer very easily and its base stock isn't so good. Only heard comments about it, so pls dont flame me.