Originally Posted by Mr Hyde
On a stock accord anything except regular gas is a waste of money. It doesnt have the compression that requires a higher octane to prevent detonation. If you want to use Super for the better cleaners, etc, then go for it, but that higher octane is not needed.
This is correct however running Premium does not get you a cleaner octane. They all have the same amount of "cleaner" in the gas. Running Premium in an engine that is rated for Regular can actually cause problems, such as higher combustion temperatures due to the higher octane fuel igniting at a higher temperatures. This is a known fact so read about it! It's a waste to run higher octane in engines that don't need it. If you run a higher octane to eliminate ping, then your engine needs a tune up or plug change.