Thread: COSTCO gas
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      02-27-2013, 05:00 PM   #53
e1000
that's what SHE said!
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Drives: 2011 E92 M3 ZCP
Join Date: Jun 2010
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Gasoline is a fungible commodity. Large oil companies buy and trade gas all the time. Base gasoline may come from any of the large manufacturers, often times from a central distribution center. The different brands then add their additive packages, and that's the difference from one brand gas to the next. I suppose there could be different standards on tank/pump quality, etc as well.
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