Octane question

[daddyfriedrich]

Will the use of 87 octane gas in a motor (2008 CBR1k) for commuting where the objective is mpg/low cost, and not mph or hard acceleration, lead to any significant damage?

 

[D-Zum]

Stick with what the manufacturer recommends.

Taking a shortcut like this may end up costing you more in the long run if the motor goes up because you're using the wrong fuel.

 

[Motofun352]

How do you ride a CBR1k, even commuting, and NOT give it the beans every chance you get????

 

[yohoho]

While newer bikes and cars are designed to detect knock and adjust the timing and fuel input to avoid issues they can still fail, the big issue is the pre-detonation due to compression with the lower octane fuels than recommended... and as you can imagine, the fuel igniting while the piston is still on the upstroke can be problematic.... as you may have heard it doesn't hurt (other than your wallet) to run higher octane, than needed, but you should never run lower octane.

Keep in mind also that there is no additional power or energy in higher octane fuel, so you will not experience any gains from running 93 or higher if your system is not built to utilize this higher compression/ignition point fuel.

Some bedtime reading: http://en.wikipedia.org/wiki/Octane_rating

daddyfriedrich;293218 wrote: Will the use of 87 octane gas in a motor (2008 CBR1k) for commuting where the objective is mpg/low cost, and not mph or hard acceleration, lead to any significant damage?