Is it bad to change my car's gas from unleaded to supreme? on 2011 Honda Civic

Is it bad to change my car's gas from unleaded to supreme?

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1 answer
Supreme gas sold in this country is also unleaded. See what octane rating is suggested by Honda should be in your owner's handbook. Check here http://repairpal.com/automobile-owners-manuals-online or try this link you may be able to down load a free copy of the owner's manual for your vehicle http://www.autousermanual.com/