Here's a post a made a few months ago. Just thinking out loud...

I'm confused by all of this concern about the cost of premium gas. Let's assume you fill your tank once a week with 10 gallons of gas. That means you have spent $2 more than if you had been able to fill it with regular. So, if you fill your tank every week for one year as mentioned, you have spent $104 more because of the premium gas. But let's go nuts and say you use twice that amount of gas. Oh my God! Now you've spent $208 more a year on gas. Whooptie-do. Man, this car is worth every damn penny. I pity the poor fools who can't use premium gas on their loser, regular-gas-using jalopies. Crossfires rock!