Quote:
Originally Posted by jcosta79
Something else I missed (I think):
When you get a tune, can't you optimize the timing, etc... for the fuel that is available in your area? In other words, from the factory the ECU has to be tuned for 91 because that is all some states carry. But with a tune you can optimize for 93 if that's what you have.
Am I wrong?
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I do believe the ECU does adjust timing for up to 94 octane...
And New Mexico only had 90 octane... (New Mexico is worse than Old Mexico
)