This is totally false...IMO, the higher the better.
I use 93 exclusively in all my engines. It burns cleaner and seems to have a bit more "oomph".
Worth it? Probably not, but I sleep better at night.
No, 90 is minimum (in the US, 95 in Euro RON).Since getting my Icon a couple of weeks ago I have been using Shell 93 and the bike runs great. So they have an 89 octane and that should be fine?
If your choice is an exhaust that eliminates the catalytic converter (most likely scenario in the US), then yes - fueling adjustments are absolutely necessary.One last question. Looking at several slip-on exhausts. In every case, regardless on which one I choose, a tune is necessary?
This makes complete sense, as the higher the octane rating - the more it is resistant to combustion.What I particularly noticed was that the higher the octane the harder it was to light the Zippo. 2 star was by far the best.
I never thought about all that lead I was probably inhaling at the time. Fortunately, I've been stopped smoking for well over 30 years but I still have the Zippo lying around.
No, you shouldn't... Ambient temperature has no bearing on which octane to use.I usually fill up with Chevron Supreme which is the highest octane at their pump, mainly because most of the year the temperature is fairly high in our area. I guess I could try a lower middle octane fuel but when the weather is warmer I worry about detonation but maybe I shouldn't?
Cliff,Once again, Tony, you are a wealth of information.
Since my earlier, uninformed post, I did a little reading-up on what the different ratings mean and you are absolutely correct with regards to compression and combustion among the various octanes.
One question, though- could our engines, even if not turbo or super charged, be considered "high performance", and if so, benefit from higher octanes?
I still want to use 93 just to sleep better.
Thanks in advance...