Originally posted by REbornHONDAneer
in the OEM owners's manuals on the gs-r's and the s2000's does it SAY that you need 91 octane? Or are u just saying that its better to have it? I'm curious!
Dave
It says you need 91+
On the tachometer it says "Premium Unleaded Fuel Only"
This is for a GSR...I am certain the ITR and S2000 are the same...actually I know the ITR is.