What are the differences between vehicles that are ethanol (e85+) compatible and those that are not? [more inside]
posted by IronLizard on May 8, 2008 - 14 answers

How much does an x% ethanol gasoline blend product reduce mileage? Does the environmental benefit from ethanol blends outweigh the increased consumption of gasoline products? Or is the benefit negligible for the consumer? [more inside]
posted by Blazecock Pileon on Jun 19, 2006 - 12 answers

Is regular unleaded gasoline made with only petroleum-derived compounds better than gasoline containing ethanol? [more inside]
posted by ackptui on May 13, 2006 - 8 answers

Ethanol Evil? I've heard having energy and food competing for land will be bad for the environment. I've heard ethanol burns cleaner and will create less CO2 which is good for the environment. Also a side question, how much ethanol is currently in gasoline, and is that a good or bad thing?
posted by parallax7d on Apr 24, 2006 - 9 answers