Quote:
Originally Posted by JETmn
FF wires are only needed for E85 because of the density difference. They are not needed for gasoline, even higher octane gas. You can easily figure out the difference in octane. If you want to max out map 5 then you should add at least 6 gallons to a full tank. That should put you at 95 octane.
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Ohh I did not know that, thanks for the info.