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2011-2014 Mustangs
2011-2014 Mustang Talk
More power with >93 octane?
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<blockquote data-quote="Torch10th" data-source="post: 11229447" data-attributes="member: 15703"><p>I would however think that Ford would program the pcm's base timing values around 93 octane to begin with however. Many areas of the country have this as their premium swill. Area's like Colorado where I'm at have only 91.</p><p></p><p>But yeah, what mastwolf is saying is 100% correct. Don't expect to gain power from adding more octane than what's needed. At least not without specific tuning for it.</p><p></p><p>The effects of this can also be somewhat detrimental to engine life and performance. Although probably not as much of a problem with today's engine technology, running octane beyond what's needed for the engine can create fuel burn issues. Over time this can aid in development of carbon deposits on the piston face and valves. These carbon deposits can develop hot spots that pre-ignite the fuel mixture. This in turn causes an "octane tolerance" in which you have to have that higher octane fuel, but without much of the benefit.</p><p></p><p>Edit: I'm an idiot, I didn't see your > in the title post and thought you were talking specifically about 93 octane.</p></blockquote><p></p>
[QUOTE="Torch10th, post: 11229447, member: 15703"] I would however think that Ford would program the pcm's base timing values around 93 octane to begin with however. Many areas of the country have this as their premium swill. Area's like Colorado where I'm at have only 91. But yeah, what mastwolf is saying is 100% correct. Don't expect to gain power from adding more octane than what's needed. At least not without specific tuning for it. The effects of this can also be somewhat detrimental to engine life and performance. Although probably not as much of a problem with today's engine technology, running octane beyond what's needed for the engine can create fuel burn issues. Over time this can aid in development of carbon deposits on the piston face and valves. These carbon deposits can develop hot spots that pre-ignite the fuel mixture. This in turn causes an "octane tolerance" in which you have to have that higher octane fuel, but without much of the benefit. Edit: I'm an idiot, I didn't see your > in the title post and thought you were talking specifically about 93 octane. [/QUOTE]
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More power with >93 octane?
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