Anyway.. Despite our differences.. I agree with U on the fuel economy part.. At least from my experience..
Interesting enough my daughter's Cruze gets seemingly better gas mileage on 93 than on 87. I think it has more to do with the fact that the car runs better and has more power in premium than regular. And what I mean by that is the same distance to school and work for her and in regular she fills up a day earlier every time. We tested it using the computer as well and yup.. 2-4 mpg better.