Could someone give me a definitive answer on the use of ethanol products in bimmer engines? I've read several websites opinions and most say that ethanol is severely destructive to BMW's and causes performance and undue wear on the engine as well as the sum of its parts. Please feel free to weigh in because the ethanol revolution is coming whether we are prepared for it or not. Just trying to gather enough information to understand the depth of the possible problems and get help with the re-engineering needed to make my bimmer excel on ethanol if that's my only fuel choice. Thanks in advance...