my owners manual recommends premium with a minimum of medium grade...
Anyways, like I said, if you're paying a lot, just enjoy the drive more
They don't get the greatest gas mileage, but it is a performance car (no, a civic is not a performance car), so it's going to suck fuel when you floor it, which is hard to do in a car this fun, and that makes such a great sound when it's floored...
My mom has a Geo Metro 3 cylinder (LOL), Yeah, I've driven it, it's a perky car...if you don't weigh much, and you never have anyone or anything in the car with you, and it gets in the 30's....