ORIGINAL: KidCr3nshaw

Well not to get into a whole fuel thing here but...

Octane in fuel is reduced over time due to temperature and atmospheric conditions. In a given night, your fuel could be reduced even 2 or 3 octane ratings. If your bike is in a heated environment, it could drop even more.

I just don't like the gas prices right now and this is my way of getting the most bang for my buck. If gas prices were more trivial, it wouldn't bother me but still the higher octane is best for the injectors so I'd always be mindful.

ORIGINAL: Icefox

Hmm...it is possible for it to reduce inAKI, but overnight seems like a very short time for it to do this. Maybe if it sat all winter, but I doubt it would do it as quickly as overnight. The fuel would have to destabilize quite a bit for this to happen...So are you suggesting that from the refinery, through the pipelines, to the distributors, and to the pump the gasoline loses a significant amount of it's AKI? I think if it happened that quickly, people wouldn't have such large capacity fuel tanks on their cars because of the chance of the reduced AKI over a matter of dayscausing an engine knock... I get that in the high temperatures, the light-ends will evaporate more quickly that in colder temps, which would eventually cause a decrease in the AKI, and I get that the higher octane fuels have more detergents in them which is in turn better for the injectors. It's just the overnight thing that's got me...

ORIGINAL: vpsophmore

I have to admit I'm somewhat jealous of the F4i guys... that fuel gage is pretty damn nice if you forget to reset your trip meter.