Has anyone used this product? If so how was it and would you recommend it . . .
I've been reading about this lawsuit for years and read reviews by critics but I'm a bit surprised that Carol Shelby promotes the product on TV commercials. I know, everyone has a price, or will say what someone wants to hear for cash, but I've always had a great deal of respect for Carol Shelby (well,,, I thought I did). Although, I've never tried Zmax so I personally don't know if Carol is full of crap or not. I can understand Mario Andretti promoting Magnaflow - it's a good product. But how can Shelby promote a product surrounded by such controversy?Zmax is currently,or was, under a lawsuit claimed by the Federal Trade Comission for false advertising because it's snake oil.
"FTC Sues Speedway Motorsports and Oil-Chem Subsidiary
Performance Claims For zMax Auto Additives Are Unsubstantiated, FTC Charges"
http://www.ftc.gov/opa/2001/02/zmax1.shtm
zmax is snake oil!!!!