Firepower International are the colourful makers of a magical "pill" that's supposed to give you better gas mileage, more power, clean your engine, tickle your nipples, et cetera (see fuelsaving.info for numerous examples of this sort of thing).
They can't quite decide whether they want people to read this document or not.
It's a piece of sales literature, meant to promote their products with lots of variously plausible "test results".
Their CEO sent it to me and ordered me to show it to people.
But I said bad things about it, so some other Firepower dude - or maybe the same guy, it's kind of hard to figure out - threatened to sue if I didn't take it down again.
You know what? Screw them.
Spread this particular santorum far and wide, with my blessing.