zmax?
 

does anyone actually use zmax stuff? i always see commercials for it on spike.

no.. but they do carry it at auto parts stores as well

No.

I've used this Zmax and had very good results. http://www.zmaxinfo.com/

wow. that looks like potent stuff. if you do try it, let us know the result.

ive always wanted too, just never got it because of the price

It's endorsed by Carrol Shelby...but I'm not a fan of his.

^^ "He wouldnt use it if it didnt work" idk if it was that good would all manufactures put it in there cars, and recommend it at service intervals? Ive never used it because it is expensive, but so is that tornado thing and that dosnt do s***

Fixed that for ya. lol

I have heard good and bad about it. It does soak into the metal as materials heat cycle just like they say. Saw a few experiments that proved it independently. The question, and basis of a lawsuit actually, is whether this is a good thing when it comes to some of the modern aluminum alloys in use in modern engines.

I have used it in the past with no ill effects. Zmax and Sea Foam together made Rally Cav run like new again at 200k miles, so I have nothing bad to say about it.