Those are far from the "only" problems... they are the easiest problems to detect. There are countless forums on the Internet that discuss all the finer points of running veg oil in diesel engines... use google if you want to find them to read all the nitty gritty details. General consensus is that running unprocessed veg oil most diesel engines will lead to coking over time, unless you heat the veg oil first. If you aren't extremely careful to remove all water from the oil, you can wear out the cylinder walls very quickly, too... and won't necessarily even notice a degradation in performance until it's too late. There are other problems that apply to specific models of diesel engines, too--you can't even run biodiesel in an '09 model year Volkswagen TDI engine without serious problems; I wouldn't even dream of trying straight VO.

Practically any veg oil *can* be used directly to power a diesel engine. But most diesel engines are not designed with such oils in mind, and therefor do not work well for extended periods of time with such oils. You risk damaging your engine if you run unmodified vegetable oil in most unmodified engines. This has been known for a century or so.

That's hardly "diesel oil" any more than other forms of vegetable oil are "diesel oil". It still needs to be converted to biodiesel to be safe for long-term use in a diesel engine. Of course it simplifies the oil extraction process greatly (usually done by pressing). You're going to get a lot of impurities (like water!) if you do what you suggest, too.

How is this different than the "corn plastic" that's been around for years? Like the stuff mentioned here... http://www.smithsonianmag.com/science-nature/plastic.html

I remember similar doomsday stories when the 28.8kbps modem came out. "With such fast Internet access to homes, the backbones will now be overloaded!"

News flash... ISPs and Telcos know how to increase their bandwidth, too... it's not just the last mile that's getting faster and allowing people to do more and more frivolous things with their Internet connections.

Sheesh.

I'm sure the Wireless Internet Service Providers Association (WISPA -- http://www.wispa.org/) will be an invaluable resource for you. If they don't have the answers you seek already, they probably will as soon as they become available.

I want a cell phone that's powered by typos. Then, given the habits of most texters... and some Slashdot posters, the more you text/post... the faster your battery charges!

... and BMW with the 335d and the X5 xDrive35D