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Old 08-05-2008, 05:29 AM   #7
BoxsterLewis
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Join Date: Mar 2008
Location: Charleston, SC
Posts: 230
I just did the calculation and its like $3.20 to put 93 verse 87 a tank extra. thats roughly 80-100 bucks a year, most you guys make that in a few hours
Go with 93 octane
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