Do you use regular unleaded fuel in your Honda S2000? I just bought my 2005 and don't want to pay the higher price for the premium. Please tell me it is okay to use the lower grade.....

no its not ok.......premium only!

why would you buy a beautiful expensive car that needs the higher octane, and not want to pay 10 cents more for the premium?

its going to knock and get all fucked up if you skimp on gas.....if you want to spend 10cents less on gas, get a Civic and i'll take the S2000. I have to put premium in my GSR and i'm not complaining! Another thing is that you'll have less power too.