2005 z400 what octane to use?
#3
Run what they call for. I think they say 87, and unless you have a high compression piston in it or timing changes 87 is all you need. And no, putting premium or race gas in it wont make it faster.
#7
I run 93 in mine. I rn 87 in my honda. You should go by what the manual says.


