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Anyone compare mpg using higher octane fuel? I'm guessing this non turbo motor will not benefit unless you are in very hot climates.
 

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I think its been shown many times that its not worth going for a higher octane than your engine requires. There's just nothing gained from it on a stock setup.


However, I've been driving a couple turbo cars for 10 years now. Anything less than premium octane doesn't even register in my mind anymore.
 
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