I think I will go for Motul 300V Power (5W-40) when my next chg...Regarding about the petrol,I used to pump Shell Super V-Power Racing and I found that the petrol damn expensive and I can't always pump Shell Super V-Power Racing so I just pump 97 Unleaded petrol...Izzit ok???How about the oil filter???any recomanded selection???Thank and appreciate all the comments by u guys.......