don't know about snake oil
motorkote is a polymer type product. it attaches itself to any surface that is exposed to the product via an ion bond, which is the chemical version of magnetism for a lack of better analogy, bearing or otherwise. its really the exact thing as static cling. that piece of packaging that won't let go or the balloon that won't stop clinging to your shirt. I believe that as such it will be a molecule thick coating that once bonded is difficult to break.
I have been involved with the trucking industry a while and have seen many miracle products come and go. they hit truck stop shelves with high shelf exposure and great fanfare. then after 2 or 3 years their gone and you can't even remember their names. motorkote has done just the opposite. it showed up several years ago with minimal shelf exposure and a few sales fliers. since then shelf exposure has grown so that some truck stops have as much as 3 feet of shelf space on two levels dedicated to the product. this means its selling to truck drivers that much between delivery cycles. truckers are some of the cheapest people on the planet. they won't put anything in their trucks that they can't see a benefit to in dollars and cents, or risk damage to a very expensive engine and drive train.
I read a post from a trucker that uses it in every other service. he said he broke a rocker arm and the tech that replaced it mentioned how slippery the broken rocker was. this is an indication to me that the stuff is doing what it was designed to do
read one post saying it has chlorine in it therefore will cause corrosion. maybe so but the chlorine wont get through the polymer coating so that is a non issue.
results in an engine where synthetic oil is used it wont be as significant as with convectional oils.
used it in my 05 Cummins I have received a fuel economy increase and some amazing flat running fe meter readings. 37.6 mpg for a 100 mile stretch running behind an oversize load. since then its gone down to 25.6 which includes idle time. this is meter not calculated but still...
I know someone who used it in his kia engine and trans and is very happy. he went from 27 to 35 mpg I assume on the meter and it shifts better now than it ever did including new.
its also the only product, as far as I have found out, not sued by uncle sam to stop making false claims about their product
am going to put it in my sportwagen. just vacillating as to when. only has 4000 miles now. my techno-geek son that had been a patent examiner told me that car companies nowadays put their own versions of this stuff on themselves so I don't know what it will do I also want to see if motorkote's claim of not voiding warranties is actual...though they haven't been sued to stop saying that...yet.