[Skools Out]

saw on discovery that if you buy 87 and test it in a tank 1 month later the octane will be around 86 to 87 still but if you buy 93 and let it sit a month that the octane reading was 84 to 85 so they said if you don't plan on using up all the fuel right away then just buy 87 due to less additives that will go away after time when stored in small amounts like less than 1000 gallons. i thought that was neat to know that it was better to buy 87.