Hi Guys This morning I went budget bikes in sydney and got some oil and oil filter. They told me that I should not use fully synthetic oil and that they never service cbr with fully synthetic oil. so I bought Motul 10w50 semi synthetic oil which was $59 and oil filter $17 I have done my first oil, filter and spark plugs change and it was easier then I thought...... took me 3 hours.... and i saved $200. So who ever is thinking about doing their own service, just do it... not hard at all, just time consuming. I am sure that know what they are talking about but should I use fully synthetic oil next time and does it make much difference to riding?