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Re: what gas/octane does everybody use? (archive)

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Posted by JamesM on May 16, 2001 at 15:54:03:

In Reply to: what gas/octane does everybody use? posted by frank on May 15, 2001 at 20:35:39:

I notice better mileage with Sunoco 94 octane in both my M3 and M% with Jim C chips. I'm in the DC Area, so the altitude is pretty low here. You can get away with lower octane in higher altitudes.

I have not used Shell a lot, just none that are convenient. I dislike Exxon, because the car feels a little slower and I do notice a drop in fuel economy.

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88 M5
88 M3

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