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mmm...beer
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i have been filling her up with 91. got 93 only once, randomly came up on it. did not see any difference, that i could notice anyway, but then again, who is to say it wasnt 91 in there? if you really want to know how the fuel grades compare. drive on 91 or 93, whichever is your states norm. then get a gallon of 87, see if you like that. then try a gallon of 89. i need to get gas, thats gonna cost me $46, for a full tank. im pissed. but if it keeps my fast happy, who am i to deny her?

100 octane, now, that sounds like fun.
 
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