The Kawasaki engine on my Ferris mower recommends minimum of 87 octane and no more than 10% ethanol. I don't know of any ethanol free gas sellers around me and don't plan to look for them.
What are the thoughts on harm or benefit to the engine if a higher octane is run? I know running a lower octane than specified will hurt an engine but I've read that running a higher octane will either make no difference because the engine's compression level can't utilize it or that it is harmful in that it causes run on after shutoff.
Would a higher octane offset any potential negative effects of the ethanol?
How about additives to offset any negative effects of ethanol. I've read where there are such products but I've also heard them described as snake oil.
Perhaps it's best just to run it with 10% ethanol 87 octane gas as recommended by the engine maker.
What are your thoughts and what is everyone else doing?
What are the thoughts on harm or benefit to the engine if a higher octane is run? I know running a lower octane than specified will hurt an engine but I've read that running a higher octane will either make no difference because the engine's compression level can't utilize it or that it is harmful in that it causes run on after shutoff.
Would a higher octane offset any potential negative effects of the ethanol?
How about additives to offset any negative effects of ethanol. I've read where there are such products but I've also heard them described as snake oil.
Perhaps it's best just to run it with 10% ethanol 87 octane gas as recommended by the engine maker.
What are your thoughts and what is everyone else doing?