Oil Change,New to forum ,Hi ALL

[zx6rphil]

Hi,Everybody
New to forum,have got a zx6r ninja 2008 and have owned it from new .had first and second sevice done whilst it was under warranty.done third one meself but wondering wheather to have it done at the dealers next .its only done 4500 mls .only reason im thinking of dealers is because when i come to sell some time later wheather it will sell easy or for more ,if with dealer history ,or do you think it wont make much difference .

Can someone please tell me which is best oil to use for my zx6r ninja 08 as at moment using same oil from when bike was new .it will be great to here your view on the servicing and best grade of oil ,

Many Thanks Phil .