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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Vp ms109
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<blockquote data-quote="wile2k" data-source="post: 14898929" data-attributes="member: 75530"><p>It can boost octane (for some safety when you are beating on it, say a track day) and help rule out false knock. All anyone is saying is that it alters the Air Fuel Ratio a bit (based on how much you mix in). Other high octane fuels are closer in stoichiometric to regular gas and will have less effect on AFR. I'd talk to your tuner about it to see if they have any concern but I personally don't think it would hurt anything for the limited purposes I've listed. </p><p></p><p>I will say that you won't get much HP benefit from it without being tuned for it (unless you are knocking and the ECU is retarding timing badly).</p></blockquote><p></p>
[QUOTE="wile2k, post: 14898929, member: 75530"] It can boost octane (for some safety when you are beating on it, say a track day) and help rule out false knock. All anyone is saying is that it alters the Air Fuel Ratio a bit (based on how much you mix in). Other high octane fuels are closer in stoichiometric to regular gas and will have less effect on AFR. I'd talk to your tuner about it to see if they have any concern but I personally don't think it would hurt anything for the limited purposes I've listed. I will say that you won't get much HP benefit from it without being tuned for it (unless you are knocking and the ECU is retarding timing badly). [/QUOTE]
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