I have just over 1000 miles now on 2012 crz, tried non ethanol 90 octane. There is definently a difference in performance and mpg. If you can find it try it. It will make you a believer in pure gas. Running 3.95 a gal. In Tampa. Had the car to 110 mph. Didnt really want to push anymore, but any know the top end on these cars? Looking forward to meet other crz owners at the meets.
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