Originally Posted by Gas Man
Glad I could help. But I'd really like to hear what Larry has to say....
KEY IN LARRY!!!
Chill dude, I only get to get here in the evenings :P
Anyway, my take on octane booster is...WHY?
First of all, octane is a fuel's ability to resist detonation. There is no advantage to running a fuel with more octane than what your engine requires. In fact, it could be argued that excessive octane makes it harder for the flame front to spread and therefore your engine loses efficiency with too much octane.
If you have an engine that requires additional octane (usually from more compression), you should be running a race gas. If you are out on the open road and race gas is not readily available, running octane booster is better than nothing. However, I wouldn't recommend racing it that way because you don't really know what octane you are running.
Now, on turbo applications (such as my car), having higher octane is an advantage because I can run more boost and/or more ignition timing. In fact, I can have multiple bost/timing/fuel maps. Whereas most bikes maintain a steady amount of compression and timing, boost and timing changes directly affect how much octane is required. However, I am still better off using race gas so I get a consistant fuel mixture and not the random results of pouring a botttle of stuff in the tank.