Put this on in error.John I did note you serviced your bike at 600 miles the dealership keeps calling me trying to get me to bring my bike back in at 500 which is fine as I plan on keeping up with all my service records as I bought this bike cash and plan to keep this bike for the rest of my time. It does run synthetic motor oil as that's what it calls for and should come with from the factory as I know as well as I know how to tell if you're bike has synthetic motor oil in it when you get it, it's easy to check all you have to do is start it when it's cold and pull in clutch put it in gear if bike tries to lunge or surge forward that means they put the wrong motor oil in the motor at factory or dealership as I was told my bike came full of all fluids when it was shipped everything but fuel which I thought was odd but whom am I to second guess guys whom are selling me a brand new bike as I told them and I did ask if they checked all my fluid levels as if anything happens it's brand new they will be replacing motor what ever. Sorry for writing a book just some information that was on my mind. I also thought this is a brand new GSX 1000 engine im sure Suzuki wouldn't ship any of thier engines especially the 1000s with no engine oil as they would probably or have already lost money from idiot's starting brand new bikes with no oil because they assumed they came with oil! So after dealing with stupid bullshit like that they decided to **** there bikes or more expensive bikes with engine oil so thier not losing 5 grand or so.