I ordered some zMax last week, and I did so because I was impressed by their long history, the FCC ruling, and their FAA approval status. I was open minded about it, and so I read as much as I could find on it. Then I bought two of their nearly $50 kits, at the bargain price of $10 each, plus shipping.
I had never seen their infomercial. The other day, I finally did see their infomercial though, on the "Truck U" TV show, and the apparent size and wealth of their organization, evidenced by their very well equipped lavish testing facility, only served to make me suspicious. It is like Gary said. It is the tone of their claims. I Have to say, that I really found the carnival atmosphere of their infomercial, to really be a bit overmuch. I tried to be optimistic, and yet as the zMax presentation droned on, I more than ever regretted having bought zMax, to the z max.
I have never once, ever heard anyone I know in real life, say anything positive about how zMax worked for their vehicle, and I find that interesting considering how long it has been around. Now ARX, on the other hand, is apparently a low overhead operation. The ARX people don't have any big expensive infomercials at all. Their packing is not a big sexy "scientific looking", clear plastic "beakerish" bottle, filled with a softly pastel colored clear liquid. No far from it, ARX packaging, is merely sedately functional, and within it is a smaller amount of some rather scruffy looking stuff, which like 'the medicine that actually works', is anything but appealing aesthetically in any way at all. Their product, ARX, is however raved about by those of good reputation, who are also more than a little skeptical of "additives" generally. I have also met people in real life, who really do actually know a bit about cars, and they also swear ARX is nothing short of amazing. My personal experience thus far bears this out also.
Sadly I am afraid, my personal experience with zMax shall remain limited, unless and until I see some real evidence that it works.
It takes more than expensive infomercials and fancy packaging, from a well moneyed outfit like Speedway Motorsports, Inc, who hold Oil-Chem Research, the manufacturers and marketers of zMAX, in subsidiary. Looks to me like they bought zMax cheap, because it was failing miserably, hence all the bargain priced old stock being pushed, and they are pumping BIG BUCKS into the usual media hyperbole hoping to 'ride it home' on a fuzzy FTC ruling, and to my mind suspect FAA approval, which may or may not hold up much longer.
Tenderloin, if you like, I will sell you my two "kits" of zMax for what I paid for it. Otherwise I shall enshrine it my garage, to remind me in future to be a bit more careful, as I was when I waited two years before finally buying ARX.