It's my understanding that its not the oil companies that make the $ off of higher octane gas... its the gas stations... the way that i have been told that it works (correct me if im wrong please) is that gas stations buy all of one kind of gas... all the gas that is shipped to them is, say (for example) 87. they then add in special additaves to boost up the octane rating. Kind of like those fuel additives that you can buy in any auto parts stores to add octane to your gas except on a larger scale. they mix up the 89, 91, 93 and whatever else there. either that or they buy 87 and 93 and mix them to get the 91 and 89... its one of the two... lol i've probably just confused people...
