Thanks for sharing that article. Very interesting. I guess when I think about it, it's piece of mind to pay the extra for the premium. There will always be a doubt in my mind if I run the 87 octane. We sure all waste more money than that on other vices and pleasures as in beer, golf, smoking, etc. Although one of my favorite beers is Sam Adams I mostly buy Mick Lite to save the money and calories. (my body hasn't noticed any knocking yet that I've noticed).

You have to look at the numbers and see how much using 93 premium is costing you on an annual basis and ask yourself is it worth the switch. It's a personal decision. Kind of a gamble. It's like Dirty Harry say's " Do Ya Feel Lucky, Well, Do Ya?"