Quote:
Originally Posted by Flakbadger
... and I am literally paying my car payment in money I'm not spending on gas, especially at $4.29/gallon US.
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Fixed it for you.
I tried premium fuel in my Mustang for a few fills with the premium fuel power program on my Hypertech power programmer. FE was the same or even down a couple of tenths of an MPG. Not worth $.20/gallon for same or less FE, but performance was better.