Quote:
Originally posted by Kaiser:
That doesn't really make sense... either the engine is designed to require higher octane (forced induction, high compression ratio etc) or it isn't. I'd never DREAM of putting anything but 92 or 93 octane in my high compression S2000. Sure, the knock sensor would retard the timing to keep it from pinging too badly - but ultimately it will still predetonate from time to time and it's bad for the motor.

Only an asshole would put the wrong fuel in a high performance machine. That's like feeding your kids dog food because "they can live on it".
Make sense or not, some engines are just designed that way - run on both premium and regular (with some power loss).

GM's LT1s and LS1s are an example, so is the Oddsey.