I have a 2016 Kodiak 700 that I just purchased and it's never been serviced. I'm wanting to change all the fluids except antifreeze. What fluids, types, amounts, weights etc should I use and where? Is it ok to use a gram ph6607 filter with Castro 10w-40 4T oil? What about in front and rear is 80w-90 gear oil used in both? What about a GL-5 gear oil that also says GL-4? Too many choices!! I was told any API rated SG oil and jaso MA-2 is this correct? Also does going from synthetic to convential make a difference or going convential to synthetic? Thanks in advance to everyone that comments!