lol- but seriously, thats not right. If you look in your owners manual, it will tell you what kind of fuel is required. My Civic lx did not prescribe premium, my Prelude S did not require premium, but my Prelude Si did. And my S2000 does too.
If you put a lower grade of fuel than what is recommended, you will have premature detonation and running issues. Just like if your car does not require premium, it will avail you nothing to step it up to premium. Of course, the car will run, but not with the power, smoothness, or efficiency originally intended.