Originally Posted by dirtboy

Daimler Chrysler stated in a news article, posted here somewhere in the forum, that it was safe to use regular unleaded on any DC car, even the high end models that were produced after a certain year.

I decided to try it out and I can tell you that the only differences I've noticed is how much I spend to fill up my car and that I get better gas mileage. Other than that, the car performs and runs the same.