Originally Posted by jaje
Honda is working on HCCI that uses compression ignition with gasoline getting 30-40% better fuel economy (on par with diesel)
i believe that will be the most significant technology we'll start to see by 2010 and much more efficient than hybrids or clean diesels (gasoline is already clean and cheaper)
That sounds great, and it brings up yet another topic of discussion. Ethanol. E85 (85% ethanol, 15% gasoline, for those who don't already know) is even cleaner than gasoline, and although more expensive to produce right now, production technology is improving. Furthermore, it has an octane rating of over 100, which makes high-compression applications, such as HCCI, much easier to manage (just as Diesel does).