Quote:
Originally Posted by roddy
I have a similar choice. Petro Canada 94 with ethanol, or Shell 91 without ethanol. It's not much of a difference this time of year, but in the heat of summer, the car runs noticeably better on the 94. The crickets chirp like crazy on the 94 though.
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Same dilemma, I think I'm going to try running Ultra94 this summer.