91 Octane Tune

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pd298

pd298

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In my state for some reason the highest octane fuel we can get is 91 octane. Do you make a 91 octane performance tune?

93 can be had, but i have to drive 30 miles to Texas.


Also, do your tunes improve low end substantially?
 
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hemifever

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Yes, for the '11+ engines I do an 89 octane and premium. Whether 91 or 93. I have different settings for each. I do an 89 as that's the min octane per the manual. 87 octane works, but not as efficient.
 
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pd298

pd298

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Hemi 5.7
What kind of performance is lost between the 91 and 93 octane?
 
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