Hi although this is by far not the first kaw ive owned it is my most recent i still have my 95 800 custom but its tore down and havnt had time to do what i want to do to it so it sits in storage for another year. My 800 sounded so much better than this 1500 does it reminds me of a gold wing. But to point im doing full tune up and wanted to know what oil you recommend as well as this vtwin seems to utulize a 2 plug per cyl system like ford did for a few years in one of the smaller ranger engines. I dont know how picky these bikes are but i tried. A splitfire in my kaw dirtbike and it hated it ran so much better on a cheap ngk Also it says to use high octane due to high compression ratio there is a sunoco by me that sells 110 should i do a mix of say 4 parts 92 and 1 part 110. Any feedback is greatly Appreciated.