Quote:
Originally Posted by CWIweldace
I would argue that you are getting the gain from the tune, not the octane. Did you follow the link and read it? If you get a gain it is not the octane level. Read. Increased octane level adds zero hydrocarbons to the fuel mixture= no added power.
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one could also argue that u did gain from the 100 octane as well. because it allowed the car to be tuned more aggressive, thus leading to more power. so really its a combination of both. cant tune the car that aggressive w/o higher octane.
u can gain power, just by using a better tune on regular 91 octane, now throw in 100 ur looking at more hp potential due to more aggressive tuning capabilities.