As I said I use STA-BIL and there is a trade secret 5% ingredient On the MSDS
does it work ? I have no idea but have used it going back to 1972 ?
At least I can wrap my head around the fact that it may do something
There are no trade secret ingredients on MARVEL and the MSDS listing comes up to 100 %
It is another item that has been around for what seems like the beginning of time 1923 with claims like top cylinder lubricant
Marvel Mystery Oil® lubricates the entire fuel system-fuel pumps, fuel injectors or carburetors and the top-portion of the cylinders. These are areas, that by design, motor oil does not reach. Using Marvel Mystery Oil® in your fuel extends the life of these vital components by providing them with lubrication that fuel alone does not provide.
If you want to believe the above go ahead