No ethanol mention doesn't mean there's none :S I don't know where you live, but I think 5% is common throughout Europe, 10% is becoming the norm here in France ... and apparently 15% in the US. Most marques have only tested up to 5%.
Ethanol has less energy than gasoline. I'm not exactly sure how this works out, but I suspect that bumping up the ethanol percentage gives a leaner mixture, unless the ECU somehow has a way of compensating (just injecting more would work, or?)
Ethanol has less energy than gasoline. I'm not exactly sure how this works out, but I suspect that bumping up the ethanol percentage gives a leaner mixture, unless the ECU somehow has a way of compensating (just injecting more would work, or?)