Ethanol can be made from algae, but Brazil uses sugar cane and corn. If they're using any algae (seaweed) to make ethanol it's very small, to the point that you shouldn't have even said what you said. Using the Owensboro E85 video was great. This video hasn't received the viewership it deserves. Regarding "negatives," there are none. The energy content issue is a canard. BTUs are irrelevant, engine optimization is the key. Engines optimized to run on ethanol will provide equal or better MPG than the comparable engines optimized to run on gasoline. Even gasoline optimized engines running on blends between E30 and E50 will provide equal of better MPG than just E0 or E10. Availability isn't really a negative of the fuel, it's an annoyance that's caused by politicians who should have long ago mandated ubiquitous ethanol availability. If you are somewhere where you can't find E85, you simply use E0 or E10. Ethanol does not attract water, it absorbs a small amount of water that it comes in contact with. The water forms because of natural condensation. The exact same amount of water will form if you only have gasoline in the tank, and the gasoline will not absorb the water, which causes problems. Ethanol's hygroscopic characteristics are a benefit, not a negative. Cold starting is not a problem because there's enough gasoline in E85 to start the engine. If the climate is so cold that the gasoline portion of E85 will not start the car, then you would have the same problem starting a gasoline-powered engine. In extremely cold climates, heaters are installed in peoples' garages to keep the engines warmish, or the engines don't get turned off. Remember that diesel engines also have cold starting problems. For many years an electric wire was used to heat and warm the diesel fuel by pushing a button. In modern cars it is a part of the regular starting process. If ethanol above E85 was ubiquitous, auto manufacturers would equip their vehicles in the same manner. All spark-ignited internal combustion engines can run of ethanol, regardless of year or manufacture, if the engine is not a flex fuel engine, you may not want to fill your tank completely. But you can still safely and effectively use the mid-range blends I mentioned earlier (E30 to E50). This saves money on the E85 gallons that you use, and lessens the harmful emissions of gasoline. Here are some of my reports to support everything I stated above: The Irrelevance Of BTU Rating - Big Oil's Gimmick To Hoodwink The Public www.theautochannel.com/news/2015/10/19/144405-irrelevance-btu-rating.html The Irrelevance Of BTU Rating - Revisited www.theautochannel.com/news/2018/07/14/603714-irrelevance-btu-rating-revisited.html The Reason Why Some Ethanol-Gasoline Blends Outperform E0 in All Engines www.theautochannel.com/news/2023/08/17/1306206-reason-why-some-ethanol-gasoline-blends-outperform-e0-all-engines.html Every Spark-Ignited Internal Combustion Engine Ever Produced Has Been Damaged By Gasoline www.theautochannel.com/news/2016/06/12/248417-every-spark-ignited-internal-combustion-engine-ever-produced-has-been.html Why Do Small Engines Suffer From Ethanol Problems? www.theautochannel.com/news/2015/09/01/140446-why-do-small-engines-suffer-from-ethanol-problems-video.html Ethanol Does NOT Suck Water Out Of The Air www.theautochannel.com/news/2016/03/18/209988-ethanol-does-not-suck-water-out-air.html