Originally posted by Xymox007
Fine. The 2003 Civic Si catalog I have sitting on the coffee table mentions the fuel recommendations as 87+ octane.
And that's exactly what we were saying. Since the RSX-S has a higher compression ratio than the Si, it needs higher octane gas. Try reading and comprehending what we are telling you.
__________________
2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget