I should state that I am speaking as a GM tech at a dealership. I certainly am NOT a motorcycle mech. Maybe it works fine in a bike engine. We ran VP C-10 in our IMSA Modified so one of the guys on the team decides he'd put it in his K2500 and ended up doing some damage. Then again thats a 9.5/1 enging with a redline less than half of what our bikes do. Perhaps I stand corrected. I still say for a street bike, anything over an octane of 94 is a waste. Octane does not make your engine faster it is simply a measurement of a fuels resistance to pre-ignition. (spark knock)Originally posted by minytrker
A friend mixes race fuel with super unleaded all the time on his race bike or just runs it on race fuel, its a 99 zx6r stock internals. He hasnt had any problems.
I was referring to the additives in non-oxygenated racing fuel. Generally you dont find octane levels over 94 in the US unless it is a racing mix. VP MR8 is great for a two stroke I ran it in my RM125.Originally posted by barnes
In Australia our prmium unleaded fuel is 98 octane without any additives and i've ran it on all my two-strokes and my '03 636 with no hasselse just more throttle response .
Really?Originally posted by scootergmc
And in other countries Octane ratings are calculated differently.