My first HD and trying to get this right. stealer told me not to use syn oil in crank(bearings will slip)on my 08 ultra. I understand this to be bunk now. my new question is do i have to drain oils from maint by dealer,do they supply what i want (mobil1 V Twin,HD form+ & spectro platinum 6 speed) or (dont laugh too hard) do i tell tham not to do oils and get a DISCOUNT on maint? so much I dont know a book is being written about it!