gas
I think I read yesterday as I was reading a manual, that 86 or higher was recomended. It may have been 87 but either way, cheaper is better. Out west you can buy 85, and I'm a cheap skate. It ran good on 85 and I get even beter mileage out west. Not sure if it's the gas or the elevation or higher percentage of highway miles.
Those motors actually run better on the regular unleaded (cheap stuff) rather than premium or even mid-grade. Unless you have a heavily modified motor. All it is, is a waste of money to put premium gas into that car.
Running premium on that engine is a waste. It will actually make you run rich. Yes your ECU will make adjustments to correct for changes in fuel, air temp/density... Which means that you could get better gas mileage with higher octane fuel... but there's no need to run anything higher than 87 octane on a factory-spec Honda SOHC. Certainly not enough of a performance boost to warrant doing otherwise on your daily driver with gas prices where they are.


