I did 0-60 and 1/4 mile time tests with tunes adjusted for premium and never did any better. One thing that some people have been finding from the higher octane is slightly better mileage when they tune for it. On average over here the premium is about $.20 higher. This comes out to a little below 7%. If you can get 7% better mileage then the higher octane will pay for itself. Just something to think about. Personally I would keep a tow tune to make pulling heavier loads easier and more efficient.
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Fri, April 23rd, 2010, 10:14 PM
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