I've never used it myself but I have heard many, many folks say they were very happy with the results.
It's called the placebo effect. Like how cars go faster after you wash them.
That's why it comes with such long and complicated instructions - to confuse the user, make them think it's something important, and tell them it's a "slow" process. What a load of ****.
Furthermore, Frank, the seller, pays people to go around to forums and post fake positive results. Nothing you read about it on the internet can be trusted. If his product was so amazing, it would be sold at every auto parts store across the country, like Marvel Mystery Oil, or Seafoam. Nobody want's to sell Frank's product because it doesn't work. If it really worked as well as he says it does than a giant corporation like Chevron would have bought him out or copied him by now.
The reason he was banned from BITOG is mostly because he would attack anyone that ever questioned the product, or if somebody posted "it doesn't work", he would attack them and say they used it wrong. The former owner of BITOG, before his death, knowingly allowed this and banned anybody that tried to get in his way, Auto-RX was paying off BITOG.
Seriously, he makes it in his garage and there is NO independent proof of it working. The pictures on his website prove nothing and only further reinforce the fact that he has nothing good to take a picture of.
That said, soaking the rings in a fairly priced cleaner like marvel mystery oil or even plain old ATF, could possibly help, but it's a long shot.
