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Originally Posted by jlc45

It's a fact that ethanol has less chemical energy than gasoline.

It's also a fact that using corn to produce "gasohol" is not environmentally sensible.

The production and manufacture of corn-based fuel in this scenario uses more energy than the resultant ethanol contains. You can look it up.

But it seems a lot of the discussion becomes speculative. E.g. I have read and been told not to use ethanol fuels in my 135i as it is a bad thing. It also seems to be that ethanol dissolves water, dilutes the fuel and promotes corrosion of metal parts.

I've read that Esso 91 here in Canada is ethanol free, but I'm not sure, so I usually fill up with expensive Shell. (Almost $7.00 Canadian per Canadian gallon of 4.55 L)

Shell and Esso are the same price.
Shell indicates it's 0 Ethanol on the pump and on the website. So I always use shell.

I LOLed at the "Canadian Gallon" hahahah what the hell is that