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I don't mean to make too big a deal about ethanol (unless in older machines that have plastic/rubber parts that can be degraded by it). The reduction in energy density is very small -- not enough of...

May be the case in the U.S.

But I actually called or emailed the big Canadian fuel companies and each one told me that their premium grade had no ethanol. (Which is one reason they recommend it...

Crappy Tire, for the points!

I also buy premium because it's ethanol-free (= slightly higher energy density = slightly better fuel economy). Probably doesn't offset the added cost, though. I...