"jeffareid" > wrote in
:

> That so called clean diesel is only 5% bio-diesel, with the other
> 95% conventional diesel, so this seems more like a case of "clean
> coal", then an actually clean fuel source.
>
> Indy race cars, now running ethanol should be considered more
> "green", even though the milage is much worse.
>
There is nothing green about ethanol. It costs more in conventional
gasoline to produce and transport than it delivers, and is still a
hydrocarbon so produces the same sort of exaust as gasoline. Bring back
the hydrogen burning car!.