Called Sal Zaino and directed him to the link.
He laughed.
Some of his thoughts.
Dust can only be "attracted" by static electricty. Dust can be "held" for instance by an oily finish, but not attracted.
Zaino most certainly is not oily. There is no oil of any kind in Z.
Zaino can be scientifically proven to be an "anti Staic", as Z6, which is effectivly a diluted Z2, is sold under a private label to a large hospital chain as an "anti Static Computer Monitor" spray.
(Seems like anybody interested in the anti static properties of Zaino could put a coat of z1/z2 on their computer monitor and see what happens. Or if you have the z6, then you now know that it is sold as an Anti Static spray.)
The Malms is very likely not on the hood. Malms and other carnauba waxs are made up of Carnauba, bees wax, parifin wax and oils. (Carnauba wax cannot be "spread". It is hard and brittle at nominal temps)
At a ambient temp of 115 degrees (very common for Death Valley) the hood temp of a black car can easily reach 250 degrees.
The combination of waxes and oils would boil away in about 15 minutes. That's one of the reasons why, after washing the Mercedes, the tester decided to remain with Zaino. It was still there under the dirt.
As to why the "zaino" side was dirtier than the "malms" side.....
Sal said he would rather not speculate.
He has tested against Malms many times and has never lost.
His formulation is Anti Static. He was very insistent about this. It's not even "neutral", it's anti static. (And BTW it's also rated the highest against UV.)
He also mentioned that in every case of a customer problem (Including the guys over at the GuruReports) the customer has not understood or has failed to follow the instructions properly.
To amplify this even further, right this moment, Sal and his people are in the process of testing "Microfiber" as a way to apply/remove ZAino.
He is doing this because some people have tried it and are touting on internet chat boards that it is superior to his recommended Made in America 100% cotton towels.
But not everybody following the advice of chat boards about the Microfiber are happy with the results and are complaining that Z has scratched their cars. Well of course, Z can not scratch a car.
What Sal has found so far is that a really well made microfiber cloth IS good. But he is also finding the QA terrible. He was looking at one brand as I called, that has 4 poorly made cloths out of 10. Recipe for disaster folks.
And BTW there is "some" indication that Micro fiber, being a synthetic, CAN cause static electricty when rubbed on a car.......
But his position has never changed. If you don't like Zaino, don't use it. If you like Malms, then use it.
He has asked me to ask the board to refrain from any flame wars.
He pointed out that I have used Zaino for more than 10 years and have never had a dust problem and my word has never been impugned on any auto chat board.
I think his position is the correct one to take.
Homer
BTW, Z1/2 or Z6 is good for tv screens too/ but not the "scored" screens on rear projection sets, only "smooth" glass or plastic screens.