Thread: 87 vs 91 octane for better mpg?
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Old 01-29-2008, 03:53 AM
rrrrrroger rrrrrroger is offline
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Posts: 76
Default Re: 87 vs 91 octane for better mpg?
Using 93 octane in my insight
gives me more power during lean-burn.
That results in higher MPG.

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