Quote:
Originally Posted by James6speed
Revisting this. After I have ran without issue for 10k miles and no knocking on Shell 89 octane, I decided to change to 93 Shell. I have noticed no difference at all in power.. I am switching back to 89 at this point. The internet keyboard pounders we're wrong as I suspected. The computer does automatically draw back with DFI to adjust for the octane and the power difference seems to be negligable. I daily this car, so an extra $20 bucks in my pocket for nothing is good enough for me.
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You talk like you took it to a dyno or a drag strip. If you’re getting no knock or sluggishness for commuting purposes, good for you. Just don’t be surprised when you get wasted by a m4 or 5.0