Quote:
Originally Posted by arpad_m
You should definitely use 98 or 100 octane, but it won't fix the problem. Octane level is associated with knock resistance, not energy density, ie these different types of gasoline are the same in terms of how much fuel the engine needs for the same amount of air entering the combustion chamber.
95 octane in the EU is equivalent to 90.7 US, and 98 octane is equivalent to 93.5 US. For your engine 93 octane (US) is strongly recommended, so your 98 (EU) should be good enough. If you see a lot of knock retard in the data log (see? this is why you want to buy that HP Tuners device), switching to 100 octane may help with that.
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I kind of figured that. I've never owned an American car before, and that's why I don't have an HP tuner. Perhaps Ted or someone else can already see something in the ECU file. I think it's the Whipple file.
Yes. I can see knocking with Launch Diagnostics. Even from 2000rpm. The tank will be empty soon, then I'll fill up with 98 octane. I'm still hoping for a miracle.
