SML: Zmax ???

[Gary]

Hey list,
I was wondering if anyone has heard anything about a product on a TV info-mercial 
called Zmax.  Its a 3 part system where you put 1 part into the gas tank (fuel 
cleaner.. etc.), 1 in the transmission, and 1 in the oil (this part is supposed to 
have less friction than regular oil).  This product also guarantees to add 10 MPG to 
your car?  It runs 40 bucks plus S&H.  I was just wondering if anyone has heard 
anything about this.  

-Gary